GFCP Electrofusion Branch Unions are designed and manufactured in accordance with ASTM F-1055 for use with pipe conforming to ASTM D2513/3035, F-714 and with Butt fittings conforming to ASTM D3261 as applicable.
PE3408/4710 Electrofusion Branch Unions are produced from a pre-blended virgin resin that has a PPI listing of PE3408/4710 which complies with ASTM D3350. This resin carries a NSF Standard 61 listing for use with potable water. These electrofusion fittings are produced from a PE3408/4710 grade of polyethylene resin which complies with ASTM D3350. The pre-blended virgin resin has a PPI listing of 3408/4710 that meets or exceeds the requirements of NSF Standard 61.