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The Alternative to R-22

Freon™ M099 is the closest match to R-22 operating pressures and mass flow rates when compared to other “no-oil change” replacements. The use of MO99 will minimize system component changes.

Freon™ MO99

  • Meets regulatory requirements
  • Closest capacity to R-22 with comparable energy efficiency
  • Best match to R-22 operating pressures
  • Extends life of existing equipment
  • Closest mass flow; best compatibility with existing A/C cap tubes and fixed metering devices


NameChemours D12860273 - Freon™ MO99 refrigerant (R438A) 25lb Cylinder
Gemaire Item NumberR438A
Manufacturer Product NumberD12860273
SKU - PIM Number1366804064736
ERP Number313743
Unit of MeasureEA
Weight28.0 Pounds (Lb)
Length9.5 Inches (In)
Width9.5 Inches (In)
Height17.0 Inches (In)
Country of OriginUSA
ApplicationLow-Medium-High temperature systems
CompositionPentafluoroethane (HFC-125) 45%, 1,1,1,2-Tetrafluoroethane (HFC-134a) 44.2%
Container TypeCylinder
Size25 Pound
Trade NamesR-438a

MO99, MO-99, R438A, Drop-In R22 Replacement M099 Refrigerant

SKU: 1366804064736
  • The buyer must be certified by the EPA. - The buyer must show proof of certification before paying and before the item can be shipped Non-EPA approved refrigerants aren't allowed on j&j due to health and safety reasons. The Federal Clean Air Act restricts the sale and use of CFC and HCFC refrigerants to technicians certified by an EPA-approved testing organization. THIS PRODUCT IS SHIPPED IN COMPLIANCE WITH FEDERAL HAZMAT REGULATIONS. THIS MEANS YOUR PRODUCT WILL BE CORRECTLY HANDLED BY THE CARRIER.

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