Body, Lock Nut (Hex), Flare Cap & Stem: Free cutting brass CZ121 or any other customized materials.O-Ring: NBR or any other customized materials.Spring: S.S or any other customized materials. Finishing: Nickel, Chrome or any other customized finishing. Features: •   Reduced weight so affordable in price compare to other designs. Application: •   It is used to reduce the extra water pressure during pumping process.•   It is used with Power sprayer pump.Â