Freon™ MO99 refrigerant (R-438A) combines R-22 pressure-enthalpy characteristics with mineral oil compatibility in a unique HFC refrigerant that can be used to replace R-22 over a wide range of evaporator temperatures. In most cases, all that needs to be done is recover the R-22, replace critical seals, charge refrigerant, restart and monitor for leaks, and you’re done. Replacing R-22 can’t get any easier.
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