This listing is for a Pack of 1. Please note that there are two types of isolating valve, this listing being for a service valve which has a compression fitting on one end to accept a pipe and the other end has a BSP female thread. If you requires a valve that will accept a pipe in each side then you will require an isolation valve 22mm isolating valve isolation valve 15mm Isolating Valves Isolation & Service Valves, Weight: 0.220462262 Pounds, Manufacturer: Primaflow