Industrial Z-CAC-437-2 In-Tank Check Valve Assembly

Industrial Z-CAC-437-2 In-Tank Check Valve Assembly is the CAC-437-2 OEM check valve used on Craftsman, DeVilbiss, and Porter-Cable air compressors. It features a 1/2" NPT inlet that threads into the air tank and a 1/2" compression outlet for the interconnecting line, aligning with common 1/2" NPT to-tank configurations. This in-tank check valve permits pressurized air to flow into the tank while preventing backflow toward the pump, helping sustain tank pressure and protect the pump from reverse flow. The CAC-437-2 is a standard OEM replacement part across multiple brands, suitable for use where a 1/2" NPT to Tank and 1/2" compression connection are required. It is commonly found in replacement parts catalogs for Craftsman/DeVilbiss/Porter-Cable compressors and supports typical 1/2" NPT systems that employ a 1/2" compression tube connection.