York S1 022 09091 000 TXV Els PW 17895 The McQuay Daikin 300042639 is The McQuay Daikin 300042639 is a genuine OEM replacement touchpad specifically engineered for PTAC and PTHP B&B+ series units Thermal Expansion Protection: Highly effective as a bypass thermal expansion valve to prevent system fatigue and component damage
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