SharkBite 3/4" x 3/4" Push-to-Connect Conversion Coupling a solution for making pipe connections with half the insertion effort and double the burst pressure resistance. This fitting features a newly designed stainless-steel retainer that enhances strength and durability, supporting a 250 psi pressure rating. It is the fastest and easiest way to transition from polybutylene pipe to PEX, copper, CPVC, and PE-RT pipes, whether wet or dry. for underground use with proper wrapping and suitable for installation behind walls without access panels, this coupling is to withstand temperatures up to 200°F and pressures up to 250 psi. The color-coded collars simplify installation by clearly indicating compatibility: the gray collar end fits polybutylene pipe, while the tan collar end fits PEX, copper, CPVC, and PE-RT pipes. Integral tube liners for both polybutylene and PEX ensure secure, leak- connections. SharkBite’s design meets NSF/ANSI-61 and ASSE 1061 standards for potable water and hydronic heating systems, contains no more than 0.25% weighted average lead on wetted surfaces, and complies with U.S. and Canadian plumbing codes. It comes with a 25-year warranty when used with PEX, copper, CPVC, and PE-RT, and a five-year warranty with HDPE SDR-9, backed by patented technology. Model Number: