Fastest way to install a water heater with PEX, copper, CPVC, PE-RT or HDPE SDR-9 pipe;Can be installed on wet lines and pressure tested immediately;Stainless steel retainer adds strength and durability;Fitting body is high-performance DZR lead-free brass;No special tools, crimping, soldering or glue required;Can be rotated after installation;No tube liner required for PEX;Rated to 140 Degree F and 200 psi.;2-year warranty when properly installed;Can be easily removed using a disconnect clip, disconnect tongs or pro disconnect tool