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R-438A (often branded as Freonâ„¢ MO99â„¢) is a non-ozone-depleting HFC refrigerant used as a direct R-22 replacement. Major suppliers include Linde, Johnstone Supply, Royal Refrigerants, and eRefrigerants, offering 25lb to 110lb cylinders. It is compatible with mineral and POE oils and requires minimal retrofit modifications.
Key Suppliers of R-438A (MO99):
- Linde (Gases Division): Global distributor providing R438A/ISCEON® MO99 in cylinders, drums, and bulk.
- Johnstone Supply: Stocks Freonâ„¢ MO99â„¢ (R-438A) in 110lb cylinders, suitable for AC retrofits.
- Royal Refrigerants: Offers 25 lb cylinders with same-day shipping.
- eRefrigerants.com: Supplies virgin R-438A, requiring EPA certification for purchase.
- Refrigerant Depot: Specialized in R-22 replacements for commercial/residential use.
- Ability Refrigerants: Stocks 25 lb cylinders.
- Voomi Supply / J&J AC Supply / Imperial AC Supply: Stock various sizes of R438A for retrofitting systems.
Product Details:
- Zero Ozone Depletion Potential (ODP): Yes.
- Safety Classification: A1 (Non-toxic and non-flammable).
- Application: Ideal for R-22 replacement in low- and medium-temperature commercial refrigeration and AC systems.
- Oil Compatibility: Mineral Oil (MO), Alkylbenzene (AB), and Polyol Ester (POE).
Note: As an HFC, EPA certification is typically required to purchase R-438A.
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R-438A Wholesale Price 2026 | Alper
Alper Refrigerants
https://alperrefrigas.com › Products › Refrigerants
Alper Refrigerants
https://alperrefrigas.com › Products › Refrigerants
HFC refrigerant blend designed for retrofitting R-22 systems. Non-ozone depleting with excellent thermodynamic properties. Freon™ MO99™ (R‑438A) – Advanced ...Read more
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Refrigerant Depot
https://www.refrigerantdepot.com › Refrigerants
Refrigerant Depot
https://www.refrigerantdepot.com › Refrigerants
Freon™ MO99 refrigerant has proven to be a reliable and cost-effective, non-ozone depleting retrofit refrigerant. In many cases, systems converted to this ...Read more
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Freonâ„¢ MO99â„¢ (R-438A) Refrigerant, 110lb cyl
Johnstone Supply
https://www.johnstonesupply.com › product-view
Johnstone Supply
https://www.johnstonesupply.com › product-view
Non-ozone depleting refrigerant for A/C retrofit installations; MO & POE compatible; Field proven for 10+ years with thousands of successfully retrofits ...Read more
60-day returns
Freonâ„¢ MO99â„¢ (R-438A) Refrigerant, an R-22 Replacement
freon.com
https://www.freon.com › products › refrigerants
freon.com
https://www.freon.com › products › refrigerants
Learn how Freonâ„¢ MO99â„¢ (R-438A) can be used as a retrofit refrigerant for R-22. Using Freonâ„¢ MO99â„¢ does not require an oil change.
438A FREON
Royal Refrigerants
https://royalrefrigerants.com › blogs › news
Royal Refrigerants
https://royalrefrigerants.com › blogs › news
Oct 8, 2025 — Freon™ 438A (MO99) is one of the most practical and widely used replacements for R22 refrigerant in HVAC and refrigeration systems. Its ...Read more
Missing: Non- ‎R438A
R438A – ISCEON® MO99.
Linde
https://static.prd.echannel.linde.com › wcsstore
Linde
https://static.prd.echannel.linde.com › wcsstore
PDF
The aim is to provide satisfactory cooling performance with zero ozone depletion potential (ODP) and lower global warming potential ... distributors of ...Read more
3 pages
Pure R438A Regrigerant Gas - Tanin refrigerant
taninrefrigerant.com
https://www.taninrefrigerant.com › Refrigerant
taninrefrigerant.com
https://www.taninrefrigerant.com › Refrigerant
R438A is an HFC-based, non-ozone-depleting refrigerant designed to replace R22 in existing air conditioning and refrigeration systems.Read more
25lb Cylinders for For Older Home AC Uni
AirRefrigerant
https://airrefrigerant.com › products › r438a-refrigerant...
AirRefrigerant
https://airrefrigerant.com › products › r438a-refrigerant...
R438A refrigerant (also known as MO99™) is a zero-ozone-depleting (ODP=0) HFC blend formulated as a true drop-in replacement for R-22 in existing air ...Read more
R-438A Refrigerant
Imperial AC Supply
https://imperialacsupply.com › ... › Refrigerants
Imperial AC Supply
https://imperialacsupply.com › ... › Refrigerants
R-438A Refrigerant is a high-performance HFC blend specifically engineered as a replacement for R-22 in existing air conditioning and refrigeration systems.Read more
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R-438a (Mo99 Generic) Refrigerant, 25 Lb. Disposable ...
HD Supply
https://hdsupplysolutions.com › ... › Refrigerant
HD Supply
https://hdsupplysolutions.com › ... › Refrigerant
Direct replacement for R-22 in existing A/C and refrigeration systems. Does not require equipment change. Delivers similar cooling capacity and operating ...Read more
Free delivery over $5090-day returns