The high-flow manual relief valve is simple to install, requiring no tools. Just screw the gauge plug with Teflon tape, place the rubber O-ring onto the threaded section, and insert the valve into the filter with Teflon tape to prevent leaks. To release air from the filter, turn the valve until you hear air escaping, then return it to its original position once water sprays out, ensuring no air remains in the filter. Made from sturdy plastic, the valve includes 2-non-slip rubber O-rings for enhanced stability. It is compatible with XtremepowerUS DE, Warrior, FNS, SMBW 2000 series and 4000, Clean and Clear (CCP100, CCP320, CCP420, CCP520), Quad DE 60, 80 and 100, and All-Predator filters (188592, 188593, 188594, 160316, 160317, 160318, 160301, 160332, 011555, 147411, 180007, 180008, 180009). The XtremepowerUS High Flow Manual Relief Valve Replacement Kit includes a relief valve, pressure gauge, gauge plug, O-ring, Teflon tape, and a user manual.