Brake Pipe Coil Copper 1/4\" (Imperial) 25ft We supply thick-walled copper 20swg which conforms to BS 2871 part 3, CN102 as well as BS EN 12451.1999. This material is 100% electrically and pressure tested. Every batch is also destructively tested for tensile and burst pressure results. Residue testing to BLS.30.JC.101 is also carried out on every batch to ensure cleanliness standards are met. This high quality thick walled copper tubing is manufactured in Great Britain and specifically designed for use with brake systems. Length: 25ft (7.62m)