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PEX-B offers the highest-rated chlorine resistance and six-month UV resistance; Approved for water service lines and burial applications including being buried under concrete; Approved for use with SharkBite EvoPEX™, SharkBite Universal push-to-connect (ASSE 1061), plastic barb (ASTM F2159) and brass barb (ASTM F1807) fittings; Certified to meet ASTM F2023 oxidative-resistance requirements for continuous hot water recirculation.
Minimum working temperature 33 deg F @ 160 psi. Maximum working temperature 200 deg F @ 80 psi; Maximum working pressure 160 psi @ 33 deg F - 70 deg F; Made in USA.