This Salamander 15mm Straight Anti-Vibration Coupler is designed to reduce noise and vibration between your Salamander shower pump and the pipework. It features a 15mm push-fit connection and a 3/4 inch plastic nut, with an included isolation valve for easy pump removal. This coupler is suitable for Salamander RP50PT and Ora pumps and comes with filter and flat washers. It is a genuine Salamander product covered by a manufacturer's guarantee.