Uponor AquaPEX 1 in. x 100 ft. Blue PEX-a Expansion Pipe is designed for residential and commercial plumbing systems. The flexible design promotes fast, easy installs, reducing the need for fittings with each change in direction. The pipe is approved for use in potable water and can also be used in hydronic heating and cooling applications where the system contains no ferrous corrodible components or where any ferrous components are isolated from the pipe. Use Uponor AquaPEX with ProPEX expansion fittings as well as PEX compression, crimp, and push fittings. The pipe promotes long-term durability and reliable performance for repair, remodel, and new construction projects. Material: Cross-Linked Polyethylene (PEX).