- PEX-b offers the highest-rated chlorine resistance and six-month UV resistance
- 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