Reliant Cluster Cartridge Filter Air Relief Valve for C3425 / C3525

Part # 647311973000

Air Relief for Tank Top/Lid on the C3425 / C3525 Cluster Cartridge Filter
(AKA Quad Filter)

Item # 2 (on diagram)
See pictures for measurements

This item connects to the top of the filter lid and the pressure gauge. It is recommended to replace the Pressure Gauge and the Air Relief Valve together. 
Part # 97201000 - Pressure Gauge