Nitro Cannon Base, 2 1 2" FNPT, 8100HD, Painted Yellow, Elkhart 18037RP1 (18037001) Grooved Reducer 52 Concentric Grooved Reducer is Size:2 1 2" x 2" 52 Concentric Grooved Reducer is a genuine Victaulic grooved fitting designed to transition from a larger grooved pipe connection to a smaller male NPT threaded outlet 180°C Maximum Operating Pressure Differential 160 PSI MOPD Orifice Size 3 64" Common Port 1 8" 27 NPT Male Normally Closed Port 1 8" 27 NPT Female Normally Open Port 1 8" 27 NPT Female Wetted Parts Stainless Steel Body Material Aluminum Seal Material Viton Electrical Leads 2 Wire Size 16 AWG Wire Insulation Teflon Nominal Lead Length 9 This 2 1 2" FNPT base Elevate your fire protection system with the Nitro Base