[Perfect Compatibility] This 98209803 Air Release Valve Assembly is compatible with 188592, 188593, 188594, 160316, 160317, 160318, 160301, 160332, 011555, 147411, 180007, 180008, 180009 filter. [High Performance]Designed to help release air from the filter. Easy to replace and use. No more tools required. Remove the broken one directly; Put the o-ring on the valve, screw the top plug tightly; Then insert the relief valve assembly into the original place. When in use, turn the air relief valve hear air being released from the filter. When water is ejected, turn the valve back to its original position. [Good Fitment] 98209803 High Manual Air Relief Valve Replacement, fit for Warrior, for EasyClean Aboveground, for EasyClean, for FNS, for FNS Plus, for SMBW 2000 Series and 4000 Series, for Clean and Clear (ccp100, ccp320, ccp420, ccp520), for Quad DE 60, 80 and 100 and all Filters. Also fit for Above Ground, for Plus, for /for Pool and Spa Filters. [Superior Material]Made of high quality plastic . Features with , sturdy, good wear and resistance, no deformation, no leak. Rubber O-ring, strengthen the sealing after installation. Threaded plug on the top, if you need to test the pressure of your filter, just unscrew the top plug and intall a pressure gauge(NOT INCLUDED) on the top of valve.