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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
    R421A is a high-purity, non-ozone depleting (ODP=0) HFC blend designed as a "drop-in" replacement for R22 in residential/commercial AC and medium/high-temperature refrigeration. It offers comparable performance to R22, usually requiring no oil changes or system modifications. It is compatible with mineral, AB, or POE oils. 
    Key Characteristics and Benefits 
    • Performance: R421A is an optimized blend of R125 and R134a, providing pressure-temperature characteristics almost identical to R22, often resulting in lower operating temperatures.
    • No Oil Changes: Typically, it does not require changing to POE oil, making it suitable for older systems with mineral or AB oil.
    • Leak Repairable: Due to a very small fractionation value (
      ≈0.3
      degrees
      ), it can be topped off during leaks without needing to remove the entire charge.
    • Versatility: Works well in various applications, including commercial and residential A/C, and commercial refrigeration. 
    Usage and Purchasing 
    • Charging: It must be charged as a liquid, often with the bottle inverted, and is ideally added at approximately 90% of the original R22 charge, though this should be adjusted based on system performance.
    • Requirements: Requires EPA certification for purchase and handling.
    • Alternatives: Popular suppliers often sell this under the "Choiceâ„¢ R421A Refrigerant" brand, with options often found through suppliers like Refrigerants Center or Refrigerant Guys. 
    It is highly recommended for retrofitting older systems to avoid replacing the entire unit. 
    If you are looking for specific purchasing or technical details, let me know: 
    • Are you buying for commercial or residential use?
    • Do you need 25lb or 30lb cylinders?
    • Do you need a specific price quote or stock availability? 
    • R421A 25lb Refrigerant - R22 alternative non-ozone
      This refrigerant is commonly used for air conditioning maintenance, system retrofits, and routine servicing where full system repl...
      Refrigerants Center, inc
    • Choiceâ„¢ R421A Refrigerant
      Choiceâ„¢ R421A is a non-ozone depleting refrigerant that can be used in a variety of applications. It can be used in: * Air conditi...
      A-Gas
    • Part 7, Pros and Cons of R-421A & Conclusion
      Sep 28, 2017 — one of the one we're going to talk about today is 421A 421a i really out of all of them and and depending on my situation. I would...
      YouTube·Chadwell Supply
      5m
    Show all
    • R421A 25lb Refrigerant - R22 alternative non-ozone
      This refrigerant is commonly used for air conditioning maintenance, system retrofits, and routine servicing where full system repl...
      Refrigerants Center, inc
    • Choiceâ„¢ R421A Refrigerant
      Choiceâ„¢ R421A is a non-ozone depleting refrigerant that can be used in a variety of applications. It can be used in: * Air conditi...
      A-Gas
    • Part 7, Pros and Cons of R-421A & Conclusion
      Sep 28, 2017 — one of the one we're going to talk about today is 421A 421a i really out of all of them and and depending on my situation. I would...
      YouTube·Chadwell Supply
      5m
    • HVAC Choice Refrigerants R-421A Field Use
      Feb 10, 2017 — so we were good there. um we've gone ahead and pulled a deep vacuum with our JB Platinum vacuum pump the pumps that we use uh pull...
      YouTube·CochiseCounty_Travels
      1m
    • R421A 25 lbs cylinders | JJ AC SUPPLY
      Usable with Mineral, AB, or POE oils, this refrigerant can be used in air conditioning, medium and high temperature residential, c...
      jj ac supply
    • Refrigerant 421A Specialty Gas size 30 lb Disposable - Arc3 Gases
      Description. Refrigerant 421A (R-421A) is a non-ozone depleting, HFC-based blend designed as a direct, eco-friendly, "drop-in" rep...
      Arc3 Gases
    • PSIG / Inches of HG - AC Pro
      R421A is a HFC blend replacement with zero ODP and is compatible with both synthetic and mineral oils.
      AC Pro
    • R-22 Retrofit with Choice R-421A
      May 24, 2015 — today we're going to take you through the process of retrofitting. this R22 condensing unit with Choice R421A with pressures nearl...
      YouTube·Choice Refrigerants
      4m
    • R-421a Retrofit Procedurerev02 | PDF | Air Conditioning - Scribd
      system and the cylinder properly connected to the vacuumed system: * Open the tank valve. * Open the high side gauge and allow (LI...
      Scribd
    • Wholesale Pure R421A Refrigerant Gas Manufacturer & Supplier
      R421A is a high-performance R22 replacement refrigerant renowned for its eco-friendly properties and strong system compatibility, ...
      www.taninrefrigerant.com
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    My Ad Center

    Web results

    Choiceâ„¢ R421A Refrigerant


    A-Gas
    https://www.agas.com › refrigerant-products › r421a
    A-Gas
    https://www.agas.com › refrigerant-products › r421a
    Choiceâ„¢ R421A refrigerant is a unique non-ozone depleting replacement for R22. Its performance temperature ranges are also comparable with those of R22.
    Missing: Custom ‎| Show results with: Custom

    R421A 25lb Refrigerant - R22 alternative non-ozone


    Refrigerants Center, inc
    https://refrigerantscenter.com › Collections › all
    Refrigerants Center, inc
    https://refrigerantscenter.com › Collections › all
    This refrigerant is commonly used for air conditioning maintenance, system retrofits, and routine servicing where full system replacement is not an option. Buy ...Read more
    $350.00 · In stock · 5.0(2) · Free delivery · 30-day returns
    Missing: Custom ‎| Show results with: Custom

    Pure R421A Refrigerant Gas


    taninrefrigerant.com
    https://www.taninrefrigerant.com › Refrigerant
    taninrefrigerant.com
    https://www.taninrefrigerant.com › Refrigerant
    R421A is a high-performance R22 replacement refrigerant renowned for its eco-friendly properties and strong system compatibility, making it a preferred choice ...Read more
    Missing: Custom ‎| Show results with: Custom

    R22 Replacement Choice 421A


    Choice Refrigerants
    https://www.choicerefrigerants.com › choice-r421a
    Choice Refrigerants
    https://www.choicerefrigerants.com › choice-r421a
    Available in 12lb and 25lb cylinders, Choice R-421A is designed to run in air-conditioning, and mid-to high-temp applications.Read more
    Missing: Custom ‎Purity

    R-421A Refrigerant 25 LB


    CoolmateGas
    https://coolmategas.com › products › r-421a-refrigerant...
    CoolmateGas
    https://coolmategas.com › products › r-421a-refrigerant...
    R421A is a hydrofluorocarbon (HFC) refrigerant blend that is designed as a replacement for R22 in various air conditioning and refrigeration applications.Read more
    $426.95 to $7,280.00 · In stock · 5.0(528) · Free delivery · 30-day returns
    Missing: Custom ‎| Show results with: Custom

    R421A Refrigerant


    Johnstone Supply
    https://www.johnstonesupply.com › product-view
    Johnstone Supply
    https://www.johnstonesupply.com › product-view
    R22 alternative non-ozone depleting 2 component blend refrigerant · Replace R22 without unit modification in most cases · Compatible with Mineral, AB or POE oils ...Read more

    R421A 25 lbs cylinders


    jj ac supply
    https://www.jjacsupply.com › product-page › r421a-25-l...
    jj ac supply
    https://www.jjacsupply.com › product-page › r421a-25-l...
    Usable with Mineral, AB, or POE oils, this refrigerant can be used in air conditioning, medium and high temperature residential, commercial, and industrial ...Read more
    Missing: Custom ‎Purity ‎gas

    R-421A Refrigerant 25 lb.


    eRefrigerants.com
    https://erefrigerants.com › products › r-421a-refrigerant-...
    eRefrigerants.com
    https://erefrigerants.com › products › r-421a-refrigerant-...
    Refrigerant R421A is a unique non-ozone depleting replacement for R22. Usable with Mineral, AB, or POE oils, this refrigerant can be used in air conditioning.Read more
    $409.00 to $6,780.00 · In stock · 5.0(8) · Free delivery · 30-day returns
    Missing: Custom ‎| Show results with: Custom
    Popular products
    • R421A Choice Refrigerant.
      R421A Choice Refrigerant
      $295.00
      Refrigerant Guys
      4.5(6)
      R421A Choice Refrigerant
      $295.00
      Refrigerant Guys
      4.5(6)
    • R-421A Refrigerant Gas | Alper Refrigerant Gas.
      R-421A Refrigerant Gas | Alper Refrigerant Gas
      $85.00
      Alper Chemical Group
      Free delivery
      R-421A Refrigerant Gas | Alper Refrigerant Gas
      $85.00
      Alper Chemical Group
      Free delivery
    • R421A Cylinder — Choice Refrigerants.
      R421A Cylinder — Choice Refrigerants
      $195.00
      Choice Refrigerants
      R421A Cylinder — Choice Refrigerants
      $195.00
      Choice Refrigerants
    • R-421A Refrigerant 25 LB| CoolmateGas Refrigerant.
      R-421A Refrigerant 25 LB| CoolmateGas Refrigerant
      $426.95
      CoolmateGas
      Free delivery by Mon
      R-421A Refrigerant 25 LB| CoolmateGas Refrigerant
      $426.95
      CoolmateGas
      Free delivery by Mon
    • R-421A Refrigerant 25 lb. 1 Cylinder.
      R-421A Refrigerant 25 lb. 1 Cylinder
      $409.00
      eRefrigerants.com
      Free delivery by Mon
      5.0(8)
      R-421A Refrigerant 25 lb. 1 Cylinder
      $409.00
      eRefrigerants.com
      Free delivery by Mon
      5.0(8)
    • R-421A Refrigerant 25 LB|CoolmateGas Refrigerant, 1 Cylinder.
      R-421A Refrigerant 25 LB|CoolmateGas Refrigerant, 1 Cylinder
      $426.95
      CoolmateGas
      Free delivery by Mon
      5.0(525)
      R-421A Refrigerant 25 LB|CoolmateGas Refrigerant, 1 Cylinder
      $426.95
      CoolmateGas
      Free delivery by Mon
      5.0(525)
    • R-421A Refrigerant R421A 25lb Replacement for R22 (BULK).
      R-421A Refrigerant R421A 25lb Replacement for R22 (BULK)
      $333.08
      Voomi Supply
      Free delivery by Mon
      4.0(1)
      R-421A Refrigerant R421A 25lb Replacement for R22 (BULK)
      $333.08
      Voomi Supply
      Free delivery by Mon
      4.0(1)
    • R-421A Refrigerant 25 lb. 10 Cylinders ($359 each).
      R-421A Refrigerant 25 lb. 10 Cylinders ($359 each)
      $3,590.00
      eRefrigerants.com
      Free delivery by Mon
      R-421A Refrigerant 25 lb. 10 Cylinders ($359 each)
      $3,590.00
      eRefrigerants.com
      Free delivery by Mon

    Web results

    R-421A Refrigerant


    Absolute Refrigerants
    https://absoluterefrigerants.com › product-category › r-...
    Absolute Refrigerants
    https://absoluterefrigerants.com › product-category › r-...
    Full Pallet R-421a 25lb Cylinders – Absolute Refrigerants · FREE SHIPPING NATIONWIDE · WAREHOUSES LOCATED ON THE WESTCOAST & EASTCOAST · BEST PRODUCT QUALITY ...Read more

    R421A Refrigerant Replacement - Shop Today


    Refrigerant Guys
    https://www.refrigerantguys.com › R421A-Choice-Refri...
    Refrigerant Guys
    https://www.refrigerantguys.com › R421A-Choice-Refri...
    R-421A is a drop-in replacement for R22 systems. With this refrigerant there is no need to change the oil. Simply recover the R22 and recharge with R421A.Read more
    $295.00 · In stock · 4.5 (6) · $57.60 delivery
    Missing: Custom ‎High-
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