SharkBite oxygen barrier PEX is a cross-linked polyethylene tubing designed for use in radiant or hydronic heating applications. Oxygen barrier PEX has an oxygen barrier applied to the exterior of the pipe, which limits oxygen permeation through the tubing wall in hydronic heating applications preventing corrosion of metal parts in the heating system. 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. Made in USA Strong, flexible, corrosion/freeze-resistant pipe designed for hot or cold plumbing applications Approved for NSF/ANSI 71, 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 – 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, one-month UV resistance Approved for use with push-to-connect (ASSE 1061), plastic barb (ASTM F2159), and brass barb (ASTM F1807) fittings Color/Finish Family: Orange Manufacturer Color/Finish: Orange Sub Type: Oxygen-barrier PEX Type: Pipe Pipe Diameter: 3/4-in Pipe Length: 10-ft Code Approvals: ANSI/NSF 61, ANSI/NSF 14, CSA B137.5, ASTM F876, ASTM F2023, and ASTM F877 Common Use: Radiant heating Material: PEX Maximum Working Pressure (PSI): 160 Maximum Working Temperature (Fahrenheit): 200 Minimum Working Temperature (Fahrenheit): 33 Package Quantity: 1 PEX Type: PEX-C Warranty: 25-year limited CA Residents: Prop 65 Warning(s): No Complies with Federal Lead Guidelines: Yes Safety Listing: NSF safety listing UNSPSC: 26121600