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    An AI Overview is not available for this searchCan't generate an AI overview right now. Try again later.
    AI Overview
    R422B (often called NU-22B) is a non-ozone depleting HFC blend designed as a direct "drop-in" retrofit for R22 in air conditioning and refrigeration systems. It operates at similar pressures to R22, usually requiring no oil change (compatible with mineral oil). It is commonly used to extend the life of older R22 units. 
    Key Characteristics of R422B Refrigerant: 
    • Composition: A blend of R-125, R-134a, and R-600a.
    • Performance: Generally, it provides similar, though sometimes slightly lower, capacity compared to R22, with similar operating pressures.
    • Compatibility: Compatible with mineral oil (MO), alkylbenzene (AB), and polyol ester (POE) lubricants.
    • Safety: Non-flammable and has an ASHRAE A1 safety classification.
    • Application: Ideal for residential/commercial A/C and medium-temperature refrigeration. 
    Retrofitting Guidelines: 
    • Preparation: System must be leak-tested and existing R22 recovered.
    • Oil Management: While compatible with mineral oil, high hold-up volumes or complex piping may require adding some POE.
    • Process: Remove R22, fix leaks, replace filter drier, evacuate (vacuum), and charge with R422B.
    • Adjustments: You may need to increase piston size by roughly 10% in some systems to maintain capacity. 
    Important Notes: 
    • Availability: As of January 1, 2025, the sale of R-422B is prohibited in certain areas (e.g., California and New York) due to GWP regulations.
    • System Check: Ensure the system is free of acid before charging. 
    For purchase, 25 lb cylinders are common, often priced around $320–$370. 
    • R422B Drop In Replacement for R22 Freon HVAC
      Jul 26, 2015 — and we're basically going to put the new shraer valve inside you want to do this on the high and the low. side. now there are thre...
      1m
      YouTube·Sam
    • iGas R422B Refrigerant Gas 25 lbs / 11.3 kg - Total Parts USA
      iGas R422B Refrigerant Gas 25 lbs / 11.3 kg. Weight : 36.6 LBR Volume : 0.949081668 FTQ Model : R422B. Brand iGas. SKU G0701.422BU...
      Total Parts USA
    • Converting R22 AC Unit to R422B. Plus Leak Search On 2 Units!
      May 11, 2023 — but did not have approval to charge the system so I'm going to be here today to re-leak check the system make sure there's no othe...
      5m
      YouTube·Jeff’s HVAC Adventures
    Show all
    • R422B Drop In Replacement for R22 Freon HVAC
      Jul 26, 2015 — and we're basically going to put the new shraer valve inside you want to do this on the high and the low. side. now there are thre...
      1m
      YouTube·Sam
    • iGas R422B Refrigerant Gas 25 lbs / 11.3 kg - Total Parts USA
      iGas R422B Refrigerant Gas 25 lbs / 11.3 kg. Weight : 36.6 LBR Volume : 0.949081668 FTQ Model : R422B. Brand iGas. SKU G0701.422BU...
      Total Parts USA
    • Converting R22 AC Unit to R422B. Plus Leak Search On 2 Units!
      May 11, 2023 — but did not have approval to charge the system so I'm going to be here today to re-leak check the system make sure there's no othe...
      5m
      YouTube·Jeff’s HVAC Adventures
    • R-422B 25 LB (NU-22) Refrigerant
      R-422B is a refrigerant that can be used to replace R-22 in air conditioning systems. It's a blend of R-22 and other refrigerants ...
      Refrigerants Center, inc
    • NU-22B R422B - Southern Pipe
      * Price:$365.11. * Availability: In Stock. Note: Branch Customer? Please login to your. account to see local branch availability.
      Southern Pipe
    • Refrigerant Products | R422B | HFC
      R422B is a retrofit blend that's designed to match R22 in air conditioning applications. It has a slight reduction in capacity, wh...
      National Refrigerants, Inc.
    • R-422B 25 lb (NU22) Refrigerant AMERICAN BRANDED New ...
      What is R422B Refrigerant? What is R422B refrigerant? It's a hydrofluorocarbon (HFC) refrigerant blend specifically developed as a...
      Royal Refrigerants
    • YouTube
      Aug 11, 2017 — To convert to R422b, increase your piston size by 10% and label the system. Expect about a 10% capacity loss.
      9:39
      YouTube·NathansHVAC
    • R-422B Refrigerant | Retrofit Solution for R-22 - Weitron
      Product Description. R-422B is a non-ozone depleting R-22 retrofit with matching cooling capacity and lower operating pressure. It...
      Weitron
    • Buy R422B Refrigerant Online
      R422B Refrigerant: An Overview R422B Refrigerant is a hydrofluorocarbon (HFC) blend designed for use as a substitute for R-22 refr...
      www.refrigerantinc.com
    • Wholesale Pure R422B Refrigerant Gas Manufacturer & Supplier
      Refrigerant gas R422B is an eco-friendly Freon gas replacement solution specifically designed for R22 system retrofits. As a zero-
      www.taninrefrigerant.com
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    My Ad Center

    Web results

    Refrigerant Products | R422B | HFC


    National Refrigerants, Inc.
    https://refrigerants.com › product › r422b
    National Refrigerants, Inc.
    https://refrigerants.com › product › r422b
    R422B is a retrofit blend that is designed to match R22 in air conditioning applications. Available in 25 and 110 lb. cylinders.
    Missing: Custom ‎Pure
    People also ask
    Is R422B the same as R-22?
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    List other R-22 alternatives
    Explain what HCFC means
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    What is R422B refrigerant replacement?
    An error has occurred. Please try again later.
    Do you charge 422B as a gas or liquid?
    liquid
    ✔ Chemical Composition: R-422B is composed of R-134a, R-125, and Isobutane (R-600a). ✔ Blend Type: It's a zeotropic blend, which means it has a temperature glide and must be charged as a liquid.May 19, 2025

    R-422B 25 lb (NU22) Refrigerant: The Ideal R-22 Replacement for HVAC ...


    Royal Refrigerants
    https://royalrefrigerants.com › blogs › news › r-422b-25...
    Royal Refrigerants
    https://royalrefrigerants.com › blogs › news › r-422b-25...
    What type of oil is used in R422B refrigerant?
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    Ask anything in AI Mode

    Explain why different oil types are compatible
    Describe each oil type
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    Web results

    Pure R422B Refrigerant Gas


    taninrefrigerant.com
    https://www.taninrefrigerant.com › Refrigerant
    taninrefrigerant.com
    https://www.taninrefrigerant.com › Refrigerant
    Refrigerant gas R422B is an eco-friendly Freon gas replacement solution specifically designed for R22 system retrofits. As a zero-ODP, non-flammable blended ...Read more
    Missing: Custom ‎| Show results with: Custom

    Disposable NU-22B (R422B) 25 lb. Cylinder - Best Price


    Refrigerant Guys
    https://www.refrigerantguys.com › NU-22B-R422B-R2...
    Refrigerant Guys
    https://www.refrigerantguys.com › NU-22B-R422B-R2...
    Order today. Contains 25 lbs of high-purity R422B refrigerant. A cost-effective retrofit solution for many R22 systems. Compatible with ...Read more
    Custom Pure R422B Refrigerant gas from www.refrigerantguys.com
    $320.00 · In stock · 4.6 (704) · $124.30 delivery
    Missing: Custom ‎| Show results with: Custom

    R422B Refrigerant


    Johnstone Supply
    https://www.johnstonesupply.com › product-view
    Johnstone Supply
    https://www.johnstonesupply.com › product-view
    Non-Ozone Depleting HFC; Direct replacement for R-22, R-417A, R-407C, R-422D; Replacement for R-22 in low, medium, and high temperature applications ...Read more
    Custom Pure R422B Refrigerant gas from www.johnstonesupply.com
    60-day returns

    Refrigerant NU-22


    F.W. Webb
    https://www.fwwebb.com › ... › Refrigerant
    F.W. Webb
    https://www.fwwebb.com › ... › Refrigerant
    R-422B Refrigerant is a retrofit blend that is designed to match R-22 in air conditioning applications. There is a slight reduction in capacity which would ...Read more
    Popular products
    • R-422B (Nu-22) Refrigerant 25 LB Online.
      R-422B (Nu-22) Refrigerant 25 LB Online
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      Refrigerants Center
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    • 10% OFF
      Freon Refrigerant R422B 28oz Canister. 10% OFF.
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      BudgetHeating.Com
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    • 11% OFF
      R-422B/Nu-22 Refrigerant 25 Lb | By Ability Refrigerants. 11% OFF.
      R-422B/Nu-22 Refrigerant 25 Lb | By Ability Refrigerants
      $379.00$429
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      R-422B/Nu-22 Refrigerant 25 Lb | By Ability Refrigerants
      $379.00$429
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    • Rgas Refrigerant: R-422B, HFC, A1, 25 lb Cylinder, Gray Model: R422B25.
      Rgas Refrigerant: R-422B, HFC, A1, 25 lb Cylinder, Gray Model: R422B25
      $381.81
      Grainger Industrial Supply
      Rgas Refrigerant: R-422B, HFC, A1, 25 lb Cylinder, Gray Model: R422B25
      $381.81
      Grainger Industrial Supply
    • R422B, (NU22), Refrigerant 8 oz. Can R22 Drop-In Replacement, Fast Shipping & IN STOCK!.
      R422B, (NU22), Refrigerant 8 oz. Can R22 Drop-In Replacement, Fast Shipping & IN STOCK!
      $62.95
      frosty-freezeacproducts.com
      R422B, (NU22), Refrigerant 8 oz. Can R22 Drop-In Replacement, Fast Shipping & IN STOCK!
      $62.95
      frosty-freezeacproducts.com
    • R-422B 25lb R-Gas 25lb.
      R-422B 25lb R-Gas 25lb
      $349.00
      Chiller City Corporation
      Free delivery by Fri
      R-422B 25lb R-Gas 25lb
      $349.00
      Chiller City Corporation
      Free delivery by Fri
    • Refrigerant R-422B 25 Pound.
      Refrigerant R-422B 25 Pound
      $550.00
      F.W. Webb Company
      Refrigerant R-422B 25 Pound
      $550.00
      F.W. Webb Company
    • Hudson Tech R-422B Refrigerant 25 lb. Canister R-22 Replacement.
      Hudson Tech R-422B Refrigerant 25 lb. Canister R-22 Replacement
      $268.65
      Mill Supply Company
      Hudson Tech R-422B Refrigerant 25 lb. Canister R-22 Replacement
      $268.65
      Mill Supply Company
    • R422B, a.k.a. NU22, Refrigerant 2.5 Lb. Can R22 Drop-In Replacement, Fast Shipping & IN STOCK!.
      R422B, a.k.a. NU22, Refrigerant 2.5 Lb. Can R22 Drop-In Replacement, Fast Shipping & IN STOCK!
      $119.99
      frosty-freezeacproducts.com
      R422B, a.k.a. NU22, Refrigerant 2.5 Lb. Can R22 Drop-In Replacement, Fast Shipping & IN STOCK!
      $119.99
      frosty-freezeacproducts.com
    • iGas R422B Refrigerant Gas 25 lbs / 11.3 kg.
      iGas R422B Refrigerant Gas 25 lbs / 11.3 kg
      $462.37
      Total Parts USA
      Free delivery by Sat
      iGas R422B Refrigerant Gas 25 lbs / 11.3 kg
      $462.37
      Total Parts USA
      Free delivery by Sat

    Web results

    Universal Refrigerant Cylinder Nu 22b R422b 25 Lb 31000


    AC Pro Store
    https://store.acpro.com › universal-refrigerant-cylinder-...
    AC Pro Store
    https://store.acpro.com › universal-refrigerant-cylinder-...
    Refrigerant Cylinder Nu-22B R422B 25 lb Universal | AC Pro #: 31000 MFG #: Universal Not Available in CA 60-day returns with no restocking fee.Read more
    Custom Pure R422B Refrigerant gas from store.acpro.com
    1-day delivery
    Missing: Pure ‎| Show results with: Pure
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    • R-422B (NU-22) Refrigerant 25 LB| CoolmateGas Refrigerant.
      R-422B (NU-22) Refrigerant 25 LB| CoolmateGas Refrigerant
      $395.95
      CoolmateGas
      Free delivery by Fri
      4.9(84)
      R-422B (NU-22) Refrigerant 25 LB| CoolmateGas Refrigerant
      $395.95
      CoolmateGas
      Free delivery by Fri
      4.9(84)
    • R422B, (NU22), 8 oz. Refrigerant, Professional Check & Charge-It Kit.
      R422B, (NU22), 8 oz. Refrigerant, Professional Check & Charge-It Kit
      $152.95
      frosty-freezeacproducts.com
      R422B, (NU22), 8 oz. Refrigerant, Professional Check & Charge-It Kit
      $152.95
      frosty-freezeacproducts.com
    • Freon Refrigerant R422B 25lb. Jug.
      Freon Refrigerant R422B 25lb. Jug
      $420.00
      BudgetHeating.Com       & more
      4.8(45)
      Freon Refrigerant R422B 25lb. Jug
      $420.00
      BudgetHeating.Com       & more
      4.8(45)
    • 422B/NU-22 Refrigerant 25 LBS.
      422B/NU-22 Refrigerant 25 LBS
      $425.00
      Arctic Refrigerants
      Free delivery by Fri
      422B/NU-22 Refrigerant 25 LBS
      $425.00
      Arctic Refrigerants
      Free delivery by Fri
    • R422B, (NU22), Refrigerant 28 oz. with Stop-Leak, UV Dye & Moisture Remover.
      R422B, (NU22), Refrigerant 28 oz. with Stop-Leak, UV Dye & Moisture Remover
      $208.93
      frosty-freezeacproducts.com
      R422B, (NU22), Refrigerant 28 oz. with Stop-Leak, UV Dye & Moisture Remover
      $208.93
      frosty-freezeacproducts.com
    • R-422B (NU-22) Refrigerant 25 LB|CoolmateGas Refrigerant, 1 Cylinder.
      R-422B (NU-22) Refrigerant 25 LB|CoolmateGas Refrigerant, 1 Cylinder
      $395.95
      CoolmateGas
      Free delivery by Fri
      4.9(84)
      R-422B (NU-22) Refrigerant 25 LB|CoolmateGas Refrigerant, 1 Cylinder
      $395.95
      CoolmateGas
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      4.9(84)
    • R422B, (NU22), 3 Lbs., Refrigerant, Professional Check & Charge-It Kit.
      R422B, (NU22), 3 Lbs., Refrigerant, Professional Check & Charge-It Kit
      $261.99
      frosty-freezeacproducts.com
      R422B, (NU22), 3 Lbs., Refrigerant, Professional Check & Charge-It Kit
      $261.99
      frosty-freezeacproducts.com
    • R422B, (NU22), Refrigerant 28 oz. with Stop-Leak, System Leak Sealer.
      R422B, (NU22), Refrigerant 28 oz. with Stop-Leak, System Leak Sealer
      $198.99
      frosty-freezeacproducts.com
      R422B, (NU22), Refrigerant 28 oz. with Stop-Leak, System Leak Sealer
      $198.99
      frosty-freezeacproducts.com
    • 12% OFF
      R-422B/Nu-22 Refrigerant 25 Lb (Reclaimed) | By Ability Refrigerants. 12% OFF.
      R-422B/Nu-22 Refrigerant 25 Lb (Reclaimed) | By Ability Refrigerants
      $479.00$545
      Ability Refrigerants
      Free delivery
      12% OFF
      R-422B/Nu-22 Refrigerant 25 Lb (Reclaimed) | By Ability Refrigerants
      $479.00$545
      Ability Refrigerants
      Free delivery
    • R-422B Refrigerant 25 LB 40 Cylinders ($349 each).
      R-422B Refrigerant 25 LB 40 Cylinders ($349 each)
      $11,560.00
      eRefrigerants.com
      Free delivery by Sat
      5.0(11)
      R-422B Refrigerant 25 LB 40 Cylinders ($349 each)
      $11,560.00
      eRefrigerants.com
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    Web results

    R422B Refrigerant for Sale | Eco-Friendly Cooling | Buy Now


    Royal Refrigerants
    https://royalrefrigerants.com › collections
    Royal Refrigerants
    https://royalrefrigerants.com › collections
    Find R422B refrigerant for sale at unbeatable prices! Perfect for eco-conscious cooling systems. Buy R422B refrigerant online today with fast, ...
    Custom Pure R422B Refrigerant gas from royalrefrigerants.com
    Free delivery · 30-day returns
    Missing: Custom ‎| Show results with: Custom

    Freon Refrigerant R422B, 25lb. Jug (R22 Replacement)


    Budget Heating and Air Conditioning
    https://www.budgetheating.com › ... › 20lb - 30lb JUGS
    Budget Heating and Air Conditioning
    https://www.budgetheating.com › ... › 20lb - 30lb JUGS
    R422B can be used to COMPLETELY replace R-22 refrigerant in new or existing R-22 residential and commercial air conditioning systems as well as non-flooded ...Read more
    Custom Pure R422B Refrigerant gas from www.budgetheating.com
    $399.00 · In stock · 5.0(1) · 5–8 day delivery · 30-day returns
    Missing: Pure ‎| Show results with: Pure
    More products
    • Weitron R422B Refrigerant Cylinder.
      Weitron R422B Refrigerant Cylinder
      $498.00
      Saber Sales & Service
      Free delivery
      5.0(11)
      Weitron R422B Refrigerant Cylinder
      $498.00
      Saber Sales & Service
      Free delivery
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    • R-422B Refrigerant (BULK).
      R-422B Refrigerant (BULK)
      $314.77
      Voomi Supply
      Free delivery by Fri
      R-422B Refrigerant (BULK)
      $314.77
      Voomi Supply
      Free delivery by Fri
    • R-422B (NU-22) Refrigerant 25 lb. 1 Cylinder.
      R-422B (NU-22) Refrigerant 25 lb. 1 Cylinder
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      eRefrigerants.com
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      5.0(11)
      R-422B (NU-22) Refrigerant 25 lb. 1 Cylinder
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      eRefrigerants.com
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    • R-422B (NU-22) Refrigerant 25 LB|CoolmateGas Refrigerant 40 Cylinders - $285 each.
      R-422B (NU-22) Refrigerant 25 LB|CoolmateGas Refrigerant 40 Cylinders - $285 each
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      CoolmateGas
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      R-422B (NU-22) Refrigerant 25 LB|CoolmateGas Refrigerant 40 Cylinders - $285 each
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      CoolmateGas
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    • R-422B (NU-22) Refrigerant 25 lb. 20 Cylinders ($319 each).
      R-422B (NU-22) Refrigerant 25 lb. 20 Cylinders ($319 each)
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      eRefrigerants.com
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      R-422B (NU-22) Refrigerant 25 lb. 20 Cylinders ($319 each)
      $6,380.00
      eRefrigerants.com
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    Web results

    iGas R422B Refrigerant Gas 25 lbs / 11.3 kg


    Total Parts USA
    https://us.totalparts.com › ... › Refrigerant Gas R404A
    Total Parts USA
    https://us.totalparts.com › ... › Refrigerant Gas R404A
    iGas R422B Refrigerant Gas 25 lbs / 11.3 kg. Weight : 36.6 LBR Volume : 0.949081668 FTQ Model : R422B. Brand iGas. SKU G0701.422BU. Condition New ...Read more
    Custom Pure R422B Refrigerant gas from us.totalparts.com
    $462.37 · In stock · Free delivery · 30-day returns
    Missing: Custom ‎Pure

    R-422B (Nu-22) Refrigerant 25 LB


    Refrigerants Center, inc
    https://refrigerantscenter.com › Collections › all
    Refrigerants Center, inc
    https://refrigerantscenter.com › Collections › all
    This 25 lb R-422B NU-22 refrigerant cylinder is available for fast shipping or local pickup. With high demand for R22 replacements, NU-22 provides outstanding ...Read more
    Custom Pure R422B Refrigerant gas from refrigerantscenter.com
    $359.00 · In stock · 4.9(21) · Free delivery · 30-day returns
    Missing: Custom ‎Pure
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