Brass push fitting to reduce CTS (copper tube size) down to next smaller SharkBite fitting. UPC (Uniform Plumbing Code), IAPMO (International Association of Plumbing and Mechanical Officials), and NSF (National Sanitation Foundation)-61 certified and approved. The fitting can be used with copper, CTS (copper tube size), PEX (cross-linked polyethylene), and CPVC (chlorinated polyvinyl chloride) and is rated at 200 F, 200 psi (pounds per square inch). It is made of 1-piece DZR (dezincification-resistant) brass, which is a noncorrosive, low lead material. Fittings can be buried and placed behind drywall. Fittings are removable and reusable. Product is individually bagged. Manufactured to include no more than 0.25% weighted average lead content on wetted surfaces.