Esco Pex Crimp Ring - Copper PEX crimp ring, Black. Crimps 3/4"; PEX fittings. Pure, annealed, black copper ring for use with PEX SDR-9 pipe only. Do not use with polybutylene pipe. Use a go-no-go gauge to ensure a complete crimp to ASTM F-1807 and CSA B137.5 specifications. Compatible with brass or polysulfone (PLS) PEX crimp fittings. Lead free for use in no lead jurisdictions. Copper Crimp Ring PEX 1/2in.
