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Convotherm K12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK 35 In. Gas Double-Stacked Combi Oven K-12 School Package, Boiler Steam, Disappearing Doors, (14) 12 x 20 In. Pan Capacity, easyTouch Controls

SKUK12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK BrandConvotherm

The Convotherm K12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK Gas Combi Oven

The Convotherm K12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK is a double-stacked K-12 school package: two maxx pro 6.10 ovens stacked with the included stacking kit, doubling capacity in one footprint. Together the two cavities hold (14) 12 x 20 x 2 1/2 inch steam table pans, and because each oven runs independently, you can steam vegetables below while rolls bake above with neither load picking up the other's flavor or humidity. The package includes triple-glazed disappearing doors as standard on both ovens, (12) 13 x 21 in. wire shelves, (12) 12 x 20 in. fry baskets, and a US cookbook with 200 preloaded recipes for common K-12 menu items. Each oven generates steam with its own high-performance boiler mounted outside the cooking chamber, holding guaranteed saturation even when both cavities steam at once. Each oven has its own gas burner (37,500 BTU/h upper, 37,500 BTU/h lower), runs on natural gas or propane with a field conversion, and draws control power from a standard 120 volt cord.

Steam, Combi-Steam, and Hot Air With Advanced Closed System+

Every cavity runs steam from 86°F to 266°F with guaranteed saturation, combi-steam from 86°F to 482°F with automatic humidity management, and hot air to the same 482°F ceiling. The Advanced Closed System+ recirculates heat and moisture instead of venting it, and each oven fine-tunes results independently with HumidityPro humidity settings, Crisp&Tasty moisture removal, BakePro baking levels, and a five-speed controllable fan. For a school line that means breakfast bake-off in one cavity and lunch steaming in the other without compromise on either.

Automatic Cooking With 399 Press&Go Profiles Per Oven

Each oven carries its own 10-inch easyTouch glass touch display with up to 399 Press&Go profiles, so a cafeteria worker taps a picture and that cavity manages temperature, humidity, and time on its own. TrayTimer runs different products on different shelves simultaneously, multi-point core probes cook proteins to exact internal temperature, and HACCP data storage logs every cycle in both ovens. WiFi and Ethernet are built in for KitchenConnect remote monitoring across the whole stack.

Disappearing Doors and Hands-Free ConvoClean+ Cleaning

Both triple-glazed disappearing doors slide back alongside their cavities instead of swinging into the aisle, so there is never a hot glass panel standing open next to students or staff, even with both ovens open at service time. Outer panes stay cool, anti-microbial hygienic handles cover the touch points, and LED lighting shows every rack level. After service, each oven's ConvoClean+ system washes its chamber hands-free with optional single-dose dispensing, and HygieniCare adds a Hygienic Steam function, SteamDisinfect, and hygienic handles on the integrated recoil hand showers.

About Convotherm

Convotherm manufactures German-engineered commercial combi ovens and combination steam ovens for restaurants, hotels, catering operations, and institutional kitchens. Its product lineup includes the compact mini and mini pro, maxx, and maxx pro series, available in countertop and floor-standing configurations. Convotherm combi ovens combine convection heat, steam, and combination cooking for baking, roasting, steaming, and reheating. Key features include Natural Smart Climate humidity control, Press&Go automated cooking programs, and ConvoClean automatic cleaning systems. Select models feature easyTouch controls, ConvoSense optical food recognition, and KitchenConnect connectivity. These commercial combination ovens support consistent cooking results across varied menus and production volumes.

Features & Benefits

  1. Double-stacked gas combi oven package for K-12 nutrition programs that need two independent cavities in one footprint
  2. Combined capacity of (14) 12 x 20 x 2 1/2 in. steam table pans across both ovens (7 upper, 7 lower)
  3. Two fully independent ovens, each with steam (86°F to 266°F), combi-steam (86°F to 482°F), and hot air (86°F to 482°F) modes
  4. Crisp&Tasty, HumidityPro, BakePro, and 5 fan speeds in each cavity
  5. Steam generated by a high-performance boiler outside each cooking chamber for guaranteed saturation
  6. Runs on natural gas or propane with field conversion; each oven's controls plug into a standard 120 volt circuit
  7. easyTouch 10 in. TFT capacitive glass touch displays with Press&Go automatic cooking, up to 399 profiles per oven
  8. TrayTimer mixed-load management, multi-point core probes, and HACCP data storage in both ovens
  9. WiFi and Ethernet (LAN) built in for KitchenConnect remote monitoring
  10. Triple-glazed disappearing doors standard on both ovens, with anti-microbial hygienic handles
  11. ConvoClean+ fully automatic cleaning with optional single-dose dispensing in each oven
  12. HygieniCare package: Hygienic Steam function, SteamDisinfect, and hygienic handles
  13. Integrated recoil hand shower and LED chamber lighting in each oven
  14. K-12 school package with a US cookbook of 200 preloaded recipes for common school menu items
  15. Includes (12) 13 x 21 in. wire shelves and (12) 12 x 20 in. fry baskets
  16. Includes the Convotherm stacking kit joining the two ovens
  17. Works with the ConvoVent 4 condensation hood by Halton and the Convotherm 4 accessory line

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$40,235.80
  • Double-stacked gas combi oven package for K-12 nutrition programs that need two independent cavities in one footprint
  • Combined capacity of (14) 12 x 20 x 2 1/2 in. steam table pans across both ovens (7 upper, 7 lower)
  • Two fully independent ovens, each with steam (86°F to 266°F), combi-steam (86°F to 482°F), and hot air (86°F to 482°F) modes
  • Crisp&Tasty, HumidityPro, BakePro, and 5 fan speeds in each cavity
  • Steam generated by a high-performance boiler outside each cooking chamber for guaranteed saturation
  • See full feature list

    The Convotherm K12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK Gas Combi Oven

    The Convotherm K12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK is a double-stacked K-12 school package: two maxx pro 6.10 ovens stacked with the included stacking kit, doubling capacity in one footprint. Together the two cavities hold (14) 12 x 20 x 2 1/2 inch steam table pans, and because each oven runs independently, you can steam vegetables below while rolls bake above with neither load picking up the other's flavor or humidity. The package includes triple-glazed disappearing doors as standard on both ovens, (12) 13 x 21 in. wire shelves, (12) 12 x 20 in. fry baskets, and a US cookbook with 200 preloaded recipes for common K-12 menu items. Each oven generates steam with its own high-performance boiler mounted outside the cooking chamber, holding guaranteed saturation even when both cavities steam at once. Each oven has its own gas burner (37,500 BTU/h upper, 37,500 BTU/h lower), runs on natural gas or propane with a field conversion, and draws control power from a standard 120 volt cord.

    Steam, Combi-Steam, and Hot Air With Advanced Closed System+

    Every cavity runs steam from 86°F to 266°F with guaranteed saturation, combi-steam from 86°F to 482°F with automatic humidity management, and hot air to the same 482°F ceiling. The Advanced Closed System+ recirculates heat and moisture instead of venting it, and each oven fine-tunes results independently with HumidityPro humidity settings, Crisp&Tasty moisture removal, BakePro baking levels, and a five-speed controllable fan. For a school line that means breakfast bake-off in one cavity and lunch steaming in the other without compromise on either.

    Automatic Cooking With 399 Press&Go Profiles Per Oven

    Each oven carries its own 10-inch easyTouch glass touch display with up to 399 Press&Go profiles, so a cafeteria worker taps a picture and that cavity manages temperature, humidity, and time on its own. TrayTimer runs different products on different shelves simultaneously, multi-point core probes cook proteins to exact internal temperature, and HACCP data storage logs every cycle in both ovens. WiFi and Ethernet are built in for KitchenConnect remote monitoring across the whole stack.

    Disappearing Doors and Hands-Free ConvoClean+ Cleaning

    Both triple-glazed disappearing doors slide back alongside their cavities instead of swinging into the aisle, so there is never a hot glass panel standing open next to students or staff, even with both ovens open at service time. Outer panes stay cool, anti-microbial hygienic handles cover the touch points, and LED lighting shows every rack level. After service, each oven's ConvoClean+ system washes its chamber hands-free with optional single-dose dispensing, and HygieniCare adds a Hygienic Steam function, SteamDisinfect, and hygienic handles on the integrated recoil hand showers.

    About Convotherm

    Convotherm manufactures German-engineered commercial combi ovens and combination steam ovens for restaurants, hotels, catering operations, and institutional kitchens. Its product lineup includes the compact mini and mini pro, maxx, and maxx pro series, available in countertop and floor-standing configurations. Convotherm combi ovens combine convection heat, steam, and combination cooking for baking, roasting, steaming, and reheating. Key features include Natural Smart Climate humidity control, Press&Go automated cooking programs, and ConvoClean automatic cleaning systems. Select models feature easyTouch controls, ConvoSense optical food recognition, and KitchenConnect connectivity. These commercial combination ovens support consistent cooking results across varied menus and production volumes.

    Features & Benefits

    1. Double-stacked gas combi oven package for K-12 nutrition programs that need two independent cavities in one footprint
    2. Combined capacity of (14) 12 x 20 x 2 1/2 in. steam table pans across both ovens (7 upper, 7 lower)
    3. Two fully independent ovens, each with steam (86°F to 266°F), combi-steam (86°F to 482°F), and hot air (86°F to 482°F) modes
    4. Crisp&Tasty, HumidityPro, BakePro, and 5 fan speeds in each cavity
    5. Steam generated by a high-performance boiler outside each cooking chamber for guaranteed saturation
    6. Runs on natural gas or propane with field conversion; each oven's controls plug into a standard 120 volt circuit
    7. easyTouch 10 in. TFT capacitive glass touch displays with Press&Go automatic cooking, up to 399 profiles per oven
    8. TrayTimer mixed-load management, multi-point core probes, and HACCP data storage in both ovens
    9. WiFi and Ethernet (LAN) built in for KitchenConnect remote monitoring
    10. Triple-glazed disappearing doors standard on both ovens, with anti-microbial hygienic handles
    11. ConvoClean+ fully automatic cleaning with optional single-dose dispensing in each oven
    12. HygieniCare package: Hygienic Steam function, SteamDisinfect, and hygienic handles
    13. Integrated recoil hand shower and LED chamber lighting in each oven
    14. K-12 school package with a US cookbook of 200 preloaded recipes for common school menu items
    15. Includes (12) 13 x 21 in. wire shelves and (12) 12 x 20 in. fry baskets
    16. Includes the Convotherm stacking kit joining the two ovens
    17. Works with the ConvoVent 4 condensation hood by Halton and the Convotherm 4 accessory line

    See all from Convotherm

    Specifications

    Configurationmaxx pro 6.10 stacked on maxx pro 6.10
    Cooking Methods (Each Oven)Steam, combi-steam, hot air
    Steam Temperature Range86°F to 266°F
    Combi-Steam Temperature Range86°F to 482°F
    Hot Air Temperature Range86°F to 482°F
    Control TypeeasyTouch 10 in. TFT touch display, each oven
    Recipe Capacity399 Press&Go profiles per oven
    Combined Steam Table Pan Capacity (12 x 20 x 2 1/2 in.)(14)
    Upper Oven (6.10) Pan Capacity(7)
    Lower Oven (6.10) Pan Capacity(7)
    Upper Oven Slide Rails7
    Lower Oven Slide Rails7
    Maximum Load Per Rail33 lb
    Steam GenerationBoiler, external to chamber, each oven
    DoorsDisappearing, triple glazing, anti-microbial handles
    Core ProbeMulti-point, each oven
    Hand ShowerIntegrated, recoil, each oven
    Cleaning SystemConvoClean+, each oven
    Voltage120 V, 1 Ph, 60 Hz, separate connection per oven
    Upper Oven (6.10) Rated Power0.6 kW
    Lower Oven (6.10) Rated Power0.6 kW
    Upper Oven (6.10) Rated Current7.5 A
    Lower Oven (6.10) Rated Current7.5 A
    Gas TypeNatural gas or propane
    Upper Oven (6.10) Gas Input37,500 BTU/h
    Lower Oven (6.10) Gas Input37,500 BTU/h
    Natural Gas Supply Pressure7 in. WC
    Propane Supply Pressure11 in. WC
    Water Connection(2) 3/4 in. GHT-M per oven
    Water Flow Pressure22 to 87 psi
    Drain2 in. inner diameter per oven
    Sound Level70 dBA max
    Upper Oven (6.10) Dimensions (W x D x H)34 1/2 x 31 1/8 x 30 in.
    Lower Oven (6.10) Dimensions (W x D x H)34 1/2 x 31 1/8 x 30 in.
    Upper Oven (6.10) Net Weight298 lb
    Lower Oven (6.10) Net Weight298 lb
    Top Clearance20 in.
    Side and Rear Clearance2 in.

    Manufacturer's Warranty

    • 2 Year

      Labor

    • 2 Year

      Parts

    Certifications & Approvals

    • NFS
      NSF Approved

    The Chef Store is your go-to online destination for commercial food service equipment. We are committed to making your shopping experience seamless and ensuring you have the resources needed to make informed purchasing decisions. We continuously invest in product information development so that you have the knowledge and tools to choose the right equipment for your business. Whether you need help understanding product specifications or recommendations for your specific use case, our experienced team is here to help. We receive ongoing product training from the manufacturers we represent to ensure you are always well-informed and up to date. We pride ourselves on our core expertise: providing answers to your questions, guiding you through the decision-making process, and ultimately helping you make the best equipment purchasing decisions for your business.

    We're here to help. To us, that means no job is too big or too small. Whether you’re a national food chain or a small mom-and-pop shop, our commitment remains the same: ensuring every project is completed to your satisfaction. From the moment you place your order to delivery, we are dedicated to ensuring a seamless, hassle-free process. We continually evaluate and refine our operations, incorporating innovative technology to enhance efficiency and streamline communication with both customers and vendors. Our goal is to minimize delays and ensure your order reaches you as quickly and smoothly as possible.

    We carry a wide range of trusted restaurant equipment brands, and our catalog is always growing. If there's a particular item or brand you don't see on our website, please reach out to us; we’d be happy to help you find it. Not to mention, we leverage manufacturer and buying group relationships to offer our customers great prices and savings. Through these partnerships, freight programs, rebate programs, and more, we are able to purchase equipment at significant discounts and pass along the savings to our customers.

     

     

     

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    The Convotherm K12 C4 ET 6.10GB-N ON 6.10GB-N DD STACK Gas Combi Oven

    About Combi Ovens

    A commercial combi oven combines convection heat, steam, and a mix of both in one cabinet, so a single unit can roast, steam, bake, braise, proof, and regenerate plated food. Electric combi ovens and gas combi ovens from Convotherm, UNOX, Atosa, Axis, AMPTO, and Bake-Off Italiana come with boiler or boilerless steam systems and touchscreen, digital, or manual controls.

    Countertop combi ovens hold 5 to 10 pans and fit a cafe, deli, or ghost kitchen line. Full-size floor models run 6 to 20 pans for full-service restaurants, and roll-in combi ovens take a loaded trolley rack for hotels, banquet halls, schools, and healthcare kitchens. Models are built around 12 x 20 inch hotel pans or 18 x 26 inch sheet pans.

    Common Types of Commercial Combi Ovens

    • Electric combi ovens: The largest group on this page, available in single-phase and three-phase versions. Electric models are the usual pick where gas service is limited or where a countertop unit needs to sit on a prep line.
    • Gas combi ovens: Natural gas models from Convotherm and UNOX in 5 to 20 pan sizes. Gas heats the cavity quickly and lowers operating cost where electric rates run high.
    • Boiler combi ovens: A steam generator produces saturated steam on demand for precise low-temperature steaming, sous-vide style cooking, and heavy steam loads. Convotherm offers a boiler version of every floor model.
    • Boilerless combi ovens: Water is injected or sprayed onto the heating element to make steam. Boilerless units cost less to buy and maintain, use less water, and cover the needs of most restaurant menus. UNOX, Atosa, and Axis models are boilerless, and Convotherm offers a spritzer-steam option on every floor model.
    • Countertop combi ovens: Units 20 to 33 inches wide that hold 5 to 10 hotel pans or full-size sheet pans. Convotherm and UNOX countertop models fit cafes, delis, ghost kitchens, and satellite lines that cannot give up floor space.
    • Floor and roll-in combi ovens: 10-pan and 20-pan floor models for full-service kitchens, plus roll-in trolley units that accept a loaded rack for banquet, hotel, and institutional volume. Convotherm also builds K-12 school packages with disappearing doors and double-stacked configurations.

    Buying a Commercial Combi Oven

    • Pan capacity and pan size: Capacities on this page run from 5 to 40 pans. Models are built around either 12 x 20 inch hotel pans or 18 x 26 inch full-size sheet pans, and a few countertop units take 2/3-size pans. Match the pan standard to what your line already uses so racks and transport carts carry over.
    • Kitchen size and volume: A 5 or 6 pan countertop oven handles a cafe, deli, or small restaurant. Full-service kitchens usually run a 10-pan floor model. Banquet, hotel, healthcare, and school kitchens step up to 20-pan or roll-in units, or stack two ovens in one footprint.
    • Power and phase: Electric models are offered in single-phase and three-phase versions. Confirm which service your panel delivers before choosing, since the two are not interchangeable. Gas models still need an electrical connection for controls and fans.
    • Steam source: Boiler units give the most precise steam control and the fastest steam recovery. Boilerless units cost less, have fewer parts to descale, and suit most menus. If you steam seafood, rice, or vegetables all day, the boiler pays for itself.
    • Controls: Most models here use touchscreen controls with programmable recipes, multi-shelf timers, and automatic cleaning cycles. Digital dial controls cost less and are easier for high-turnover staff. Axis offers manual-control units for operators who want the simplest interface.
    • Water treatment: Every combi oven needs a water filter sized for its steam system. Scale is the leading cause of boiler and injector failure, and most manufacturers tie warranty coverage to proper filtration.
    • Ventilation: Combi ovens vent steam and combustion byproducts and are typically installed under a Type I or Type II hood depending on fuel type and local code. Plan the hood location before the oven arrives.

    Commercial Combi Oven FAQs

    What Is a Commercial Combi Oven?

    A commercial combi oven is a convection oven and a steamer in one cabinet. It cooks in three modes: dry convection heat, pure steam, and a combination of both with adjustable humidity. One unit can replace a convection oven, a steamer, a kettle, and in many kitchens a smoker or holding cabinet, which saves floor space and labor.

    How Much Does a Commercial Combi Oven Cost?

    Prices on this page run from about $5,300 for a 5-pan electric countertop model to over $60,000 for a double-stacked institutional package. Countertop units from UNOX and Convotherm fall between $8,000 and $15,000. A 10-pan floor model with touchscreen controls typically lands between $17,000 and $26,000. Gas, boiler steam, and roll-in trolley designs add to the price.

    Is a Commercial Combi Oven Worth It?

    Yes for any kitchen that cooks in volume. One combi oven replaces a convection oven, a steamer, and often a kettle or holding cabinet, which frees floor space and cuts equipment spend. Steam cooking holds in moisture, so proteins lose less weight and food cost drops. Programmable controls give the same result on every shift regardless of who is cooking. Most operators recover the price difference over a standard convection oven through yield, labor, and energy savings.

    Which Commercial Combi Oven Is Best for My Kitchen?

    Choose by volume first, then by menu. Cafes and small restaurants do well with a 5 to 7 pan countertop oven. Full-service restaurants typically run a 10-pan floor model. Hotels, caterers, and schools use 20-pan or roll-in units. Menus heavy on steamed items benefit from a boiler model; most other menus are well served by a boilerless oven. If gas service is available, a gas model lowers operating cost on a high-volume line.

    Related Categories

    Shop by Brand

    About Convotherm

    Convotherm manufactures German-engineered commercial combi ovens and combination steam ovens for restaurants, hotels, catering operations, and institutional kitchens. Its product lineup includes the compact mini and mini pro, maxx, and maxx pro series, available in countertop and floor-standing configurations. Convotherm combi ovens combine convection heat, steam, and combination cooking for baking, roasting, steaming, and reheating. Key features include Natural Smart Climate humidity control, Press&Go automated cooking programs, and ConvoClean automatic cleaning systems. Select models feature easyTouch controls, ConvoSense optical food recognition, and KitchenConnect connectivity. These commercial combination ovens support consistent cooking results across varied menus and production volumes.

    Product Features

    1. Double-stacked gas combi oven package for K-12 nutrition programs that need two independent cavities in one footprint
    2. Combined capacity of (14) 12 x 20 x 2 1/2 in. steam table pans across both ovens (7 upper, 7 lower)
    3. Two fully independent ovens, each with steam (86°F to 266°F), combi-steam (86°F to 482°F), and hot air (86°F to 482°F) modes
    4. Crisp&Tasty, HumidityPro, BakePro, and 5 fan speeds in each cavity
    5. Steam generated by a high-performance boiler outside each cooking chamber for guaranteed saturation
    6. Runs on natural gas or propane with field conversion; each oven's controls plug into a standard 120 volt circuit
    7. easyTouch 10 in. TFT capacitive glass touch displays with Press&Go automatic cooking, up to 399 profiles per oven
    8. TrayTimer mixed-load management, multi-point core probes, and HACCP data storage in both ovens
    9. WiFi and Ethernet (LAN) built in for KitchenConnect remote monitoring
    10. Triple-glazed disappearing doors standard on both ovens, with anti-microbial hygienic handles
    11. ConvoClean+ fully automatic cleaning with optional single-dose dispensing in each oven
    12. HygieniCare package: Hygienic Steam function, SteamDisinfect, and hygienic handles
    13. Integrated recoil hand shower and LED chamber lighting in each oven
    14. K-12 school package with a US cookbook of 200 preloaded recipes for common school menu items
    15. Includes (12) 13 x 21 in. wire shelves and (12) 12 x 20 in. fry baskets
    16. Includes the Convotherm stacking kit joining the two ovens
    17. Works with the ConvoVent 4 condensation hood by Halton and the Convotherm 4 accessory line

    See all from Convotherm

    Specifications

    Configurationmaxx pro 6.10 stacked on maxx pro 6.10
    Cooking Methods (Each Oven)Steam, combi-steam, hot air
    Steam Temperature Range86°F to 266°F
    Combi-Steam Temperature Range86°F to 482°F
    Hot Air Temperature Range86°F to 482°F
    Control TypeeasyTouch 10 in. TFT touch display, each oven
    Recipe Capacity399 Press&Go profiles per oven
    Combined Steam Table Pan Capacity (12 x 20 x 2 1/2 in.)(14)
    Upper Oven (6.10) Pan Capacity(7)
    Lower Oven (6.10) Pan Capacity(7)
    Upper Oven Slide Rails7
    Lower Oven Slide Rails7
    Maximum Load Per Rail33 lb
    Steam GenerationBoiler, external to chamber, each oven
    DoorsDisappearing, triple glazing, anti-microbial handles
    Core ProbeMulti-point, each oven
    Hand ShowerIntegrated, recoil, each oven
    Cleaning SystemConvoClean+, each oven
    Voltage120 V, 1 Ph, 60 Hz, separate connection per oven
    Upper Oven (6.10) Rated Power0.6 kW
    Lower Oven (6.10) Rated Power0.6 kW
    Upper Oven (6.10) Rated Current7.5 A
    Lower Oven (6.10) Rated Current7.5 A
    Gas TypeNatural gas or propane
    Upper Oven (6.10) Gas Input37,500 BTU/h
    Lower Oven (6.10) Gas Input37,500 BTU/h
    Natural Gas Supply Pressure7 in. WC
    Propane Supply Pressure11 in. WC
    Water Connection(2) 3/4 in. GHT-M per oven
    Water Flow Pressure22 to 87 psi
    Drain2 in. inner diameter per oven
    Sound Level70 dBA max
    Upper Oven (6.10) Dimensions (W x D x H)34 1/2 x 31 1/8 x 30 in.
    Lower Oven (6.10) Dimensions (W x D x H)34 1/2 x 31 1/8 x 30 in.
    Upper Oven (6.10) Net Weight298 lb
    Lower Oven (6.10) Net Weight298 lb
    Top Clearance20 in.
    Side and Rear Clearance2 in.

    Manufacturer's Warranty

      2 year

      Labor

      2 year

      Parts

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