Brass Female Coupling Brass Pex fittings is made of forged brass or machined from brass bar, designed to connect Pex pipe,aluminum plastic composite pipe and other pipeline appications. Optional Materials: Brass CW617N, CW614N, HPb57-3, H59-1, C37700, DZR, Lead-free Applications: Fluid control system for building and plumbing: Water,oil, Gas, and other non-corrosive liquid Rongde is the leading manufacturers of Brass Fitting, Brass Coupling, Brass Equal Elbow, Brass Wallplate Elbow, Brass Tee, Brass Straight Cross, Brass Female Tee, Brass Female Elbow etc. Welcome to contact us, best quality and factory price will give you.