R72AA0090 Mortex ORIFICE 

Mortex R72AA0090 OEM Refrigerant Orifice — .090 Size The R72AA0090 is the factory‑specified .090 refrigerant orifice used in Mortex tube‑and‑fin evaporator coil assemblies. This fixed‑metering piston regulates refrigerant flow for proper superheat and cooling performance in systems designed for orifice‑type expansion. Replace when the original piston is worn, contaminated, or mismatched after coil or condenser replacement. Exact OEM size and fit for Mortex evaporator housings.

Cross Reference:

• R72AA0090 (current OEM)

• Mortex .090 refrigerant orifice

• Fixed‑metering piston

• Mortex 98‑8 series coil (.90 orifice) — size match

• Fits select Mortex tube‑and‑fin evaporator coils