Pex-B pipe is made of a cross-linked polyethylene. _x000D__x000D_
This production method of silane cross-linking provided Pex-B pipe with a superior chemical and mechanical performance. _x000D__x000D_
Chlorine Resistance: Class 5; the highest level. _x000D__x000D_
UV Resistance: 1 month. _x000D__x000D_
Maximum Working Pressure: 160 psi @ 73.4°F (23°C) - 100 psi @ 180°F (82°C) - 80 psi @ 200° F (93°C). _x000D__x000D_
Standard & Approvals: Streamway Pex-B pipe meets the standard of CSA B137.5; ASTM E84; ASTM 876 and ASTM 877. _x000D__x000D_
It is listed to NSF/ANSI 61 by NSF for use in potable water systems.