3/4 in. Compression X 3/4 in. D Compression Plastic Transition Coupling, Flair-It, Mfr#: 16347

Flair-It fittings are constructed of durable polyoxymethylene POM and are compatible with PEX and PB. The patented design consists of a nut and flared insert and requires No tools. The fittings push against the ID and OD of the pipe creating a strong long-term seal.