LTWFITTING 1/2" PEX Couplings, Brass Crimp PEX Fitting( Pack of 25 ) These Brass (Lead Free) Pex couplings are easily installed without flame, flux, or solder and requires no bonding agents, glue, or solvents. Fitting resists corrosion, mineral buildup, rust, and freeze damage. Suitable for new or retrofit construction and for hot or cold water distribution. Certified for use in potable water applications. PEX x PEXCouplingMade from lead-free brass, complies with 2014 SDWA and is approved for potable water applications. PEX x PEX Couplingsare used to connect two PEX pipes together.Compatible with all types and brands of PEX Tubing: Watts; Everhot; Viega;