– Meets NFPA 58 Dielectric Union Requirement – Eliminates Need for Test Tee and Labor to Install – Removable Plug Enables Port for Pressure Gauge – Valve Can be Locked in the Closed Position by Reversing the Handle – 1/8" Side Tap – 2 FKM O-Rings – 100% Leak Tested – 100% Made in Italy – Leakproof Stem - Lifetime Warranty