Oil Creek's Aqua PERT is extruded from patented technology of DOW 2399 PE-RT Resin. Legend Valve's HyperPure™ is compatible for use in plumbing systems
utilizing ASTM F 1807 and 2159 PEX fittings with either
copper rings or stainless steel clamps. It is also compatible
with ASTM F 2080 cold expansion PEX fittings and ASSE
1061 push-fit fittings.