SharkBite Reducing Tees come in a variety of different sizes and allow for pipe-size reduction in multiple ways. These fittings are easily rotated after installation to make connecting even easier in tight spaces. There is no need for soldering, clamps, unions or glue. These fittings are certified for use with Copper, PEX, CPVC or PE-RT tubing. Connects copper, PEX, or CPVC in any combinationCertified for underground and behind the wall applications and as a manufactured joint without access panelsExceeds ASSE 1061 Section 1V, 4.1 Materials - Dezincification (DZR) - ISO 6509Certified for potable water and hydronic applicationsAlways consult with local plumbing codes concerning specific applicationsAll components are chloramine resistantTraceability - All products are stamped with a manufacturing dateApproved for burialCorrosion resistant