This is a comprehensive 40QN660002 Remote Control Kit

direct installation onto service ports

This 4-way pilot-operated valve is engineered for R22 and R410A refrigerants

Unlike a PVB

Carrier EC31EZ212 Check Valve 322055-301 This is a comprehensive 40QN660002The Carrier EC31EZ212 Check Valve is a critical OEM replacement part designed for unidirectional flow control in high performance residential and commercial refrigeration systems. This 5 8 inch check valve features a robust brass body and a pressure actuated mechanism, ensuring a tight seal that prevents refrigerant backflow and protects the compressor from liquid slugging. Engineered specifically for Carrier HVAC equipment, it maintains system