AquaLock™ 35 Series products are manufactured in Polysulfone and certified to NSF-61, NSF-14, CSA B137. 5, ASTM F877, IGC 188-04c and recognized by the Uniform Plumbing Code. Rated 180 F @ 100psi / 75 F @ 250psi. AquaLock™ state of the art design allows a simple snap connection to plastic, CPVC, and copper tubing. AquaLock™ fittings are quickly and easily installed without any special tools, compression sleeves, nuts, adhesives, welding, clamps, or crimps of any kind.