– Eliminates Need for Test Tee and Labor to Install – Ideal for Use Outside in Extremely Cold Climates – 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 – For Sizes Above 3/4", use T-100STN