Designed to simplify pipe installation. Instant push-fit connection for increased ease-of-use- no soldering required. Fittings certified to 200 PSI and 200° F (93° C). Fits OD controlled copper, CPVC, or PEX pipe. Compact, corrosion resistant, robust DZR brass body. Design certified to ANSI/NSF-61 product standard for use in potable water systems. Listed by IAPMO and are certified for potable and hydroponic heating water distribution. Certified for underground applications and as a manufactured joint without access panels and they meet UPC, IPC, and cUPC requirements.