SharkBite PEX-A 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-A is compatible PEX F-1960 expansion fittings, EvoPEX fittings, PEX F-1807/2159 crimp fittings or push-to-connect fittings. Color: Blue.