Weathermatic® Max12 PRS MAX12PRS40-CV 12" Pop-Up Sprayhead with 40 PSI Regulated Stem and Check Valve. Offering the industries first dual pressure-activated seal with a 720° sealing surface around the flow tube stem, cap, and body to eliminate stick-ups and cap to body leaks. Also every Max Spray model includes a super-strength spring with over 37% stronger retraction force than the leading competitor!