General description This new Salamander 15mm Angled AV Coupler is designed to replace any used single Salamander 15mm Angled AV Coupler. The Salamander AV Couplers are supplied with Salamander pumps and are essential for limiting the transfer of motor and pump vibration to the associated pipework. Technical specifications Size: 15mm x 3/4'' Inch Type: Angled Anti Vibration Coupler Includes Built In Isolation Valves Compatibility and accessories Compatible with Salamander pumps using 3/4'' BSP x 22mm AV couplers Compatible with Salamander pumps using 3/4'' BSP x 15mm AV couplers for models CT, CT+, RSP 50, and RGP 40