– Dezincification Resistant Brass Alloy – Gland Follower and Single O-Ring Stem Design – Stainless Steel Ball and Stem – IAPMO Certified - NSF 61 / NSF 372 / NSF 14 – ASTM F1960 – Blow-Out Proof Stem – 100% Leak Tested – Wetted Surfaces Contain Less than .25% Lead Content