Interstate Pneumatics WRCO2-K1 CO2 regulator, Recoil hose and Coupler Kit Hose Length: 12 feet | Stored Length: 4.5 inch | Working Length: 8 feet Working Pressure at 70 F: 125 PSI | Fitting Size: 1/4 inch | NPT Fitting Type: Swivel Body: Steel, Zinc plated | NPT size: 1/4 inch NPT Female | Type: Universal | Seals: Buna-N (Nitrile) Temperature: -40 F to 212 F | Spring: Stainless Steel Ball Bearing: Quantity 6, stainless steel