This Salamander Pumps anti-vibration coupler is a straight, 22mm push-fit connector with a 3/4" plastic nut and an isolation valve for easy removal. It is designed to reduce noise and vibration between your shower pump and pipework, ensuring a quieter and smoother operation. The push-fit design allows for quick and simple installation. This coupler is suitable for all Salamander RP pumps except the RP50PT and includes a filter and flat washers. It is made from durable silver plastic.