Listing is for [1] Culligan 1" Bypass Valve (completely refurbished with new internal seals) Including [2] "New" 1" Straight Fittings Connectors Adapters HE / Medallist / Gold Series Water Softeners. The 1” Culligan bypass valves are easily identifiable (Utilizes “L” shaped pins to secure to control valve). If you are unsure, please ask questions or send images of your setup. The fittings utilize push fit style (shark-bite) connectors for 1" water lines (Pex, Uponor, Wirsbo, Copper, CPVC) to connect to bypass. These fittings Include gaskets to seal connections to bypass valve.