Specification: size: 1/2''x1/2''BSP F 1/2'' BSP F compression threaded elbows inlet for hot and cold water 150mm pipe centres brass elbows, steel bracketFeatures: easy and efficient installation, no tools required compatible with most wall mounted shower mixer valves, washbasin ,bathtub or sink valves with 150mm pipe centre except standard 15mm copper pipe it can be used with plastic pipe such as pex pipe or polybutylene pipe of well known brands like Speedfit or Polyplumb(pipe insert is required) compression pipe connection when used with shower reducer it allows you to play with shower mixer,washbasin mixer centre between 140mm-170mm.