Cash Acme "Sharkbite" 1/2" tube x 1/2" female NPT push-fit adapter. Cash Acme's "Sharkbite" push-fit fittings connect copper, CPVC, or PEX pipe simply by pushing the pipe into the fitting. No soldering or crimping tools are needed. The fitting can also be removed with the disconnect clip. These adapters are certified to 200 psi and 180°F. Brass body adapters are IAPMO certified for hydronic heating and potable water. ANSI/NSF Std.61.