the 626552R is the official replacement fan switch for the discontinued 626552

The Setra 26410R5WD11T1C is a field-proven low differential pressure transducer designed for the rigorous demands of HVAC building automation and critical environment monitoring

For field technicians and contractors maintaining Trane and American Standard heat pump systems

Robust Construction: Durable brass body with EPDM seals suitable for media temperatures between -14°F and 248°F

What causes a Williams P309600 to trip frequently

Johnson Controls P70CA-5 Pressure Control R-410A the 626552R is the officialSingle Pole High Pressure Control, Close High Open Low, 50 Psi to 450 Psi, SPST, 60 Psi to 150 Psi Differential, 1 4" Female NPT Pressure Connector, 525 Psig Maximum Overpressure, For use with Ammonia P70CA 5 is identical to P70CA 5C This item does not qualify for free shipping.