Description SharkBite PEX-B is a cross-linked polyethylene tubing designed for use in residential and commercial plumbing applications. PEX pipe is flexible and easy to work with, which reduces the number of fittings needed to complete a job; reducing cost and leak points. PEX is also extremely durable and corrosion/freeze resistant. SharkBite PEX is compatible with brass or plastic barb fittings using copper crimp ring or stainless steel clamp connection methods or push-to-connect fittings.PRODUCT DETAIL:Made in USA Strong, flexible, corrosion/freeze-resistant pipe designed for hot or cold plumbing applications Approved for NSF/ANSI 62, ASTM F877-2011a and CSA B137.5-2009 Minimum working temperature 33 degrees F at 160 PSI Maximum working temperature 200 degrees F at 80 PSI Maximum working pressure is 160 PSI at 33 degrees F â 70 degrees F (see spec sheet for more detail) Approved for water service lines and burial applications including being buried under concrete Highest-rated chlorine resistance, six-month UV resistance Approved for use with push-to-connect (ASSE 1061), plastic barb (ASTM F2159), and brass barb (ASTM F1807) fittings