Push-Fit products are very convenient to install, just need to push the pipe completely into the fitting, needn't use any tools, such as spanner. All Push-Fit Fittings are suitable for Irish, BS and EN Standard Copper and Plastic Pipe. Size is from 15mm to 28mm & 1/2" to 1" Body: Brass Cap nut: Nylon O-Ring: EPDM Spacer Washer: Nylon Grab Ring: Stainless steel