Simplify your plumbing and home improvement projects with the SharkBite Max brass push pressure gauges. Composed of strong and sturdy lead free DZR brass with a reinforced stainless-steel collar, these gauge assemblies are perfect for monitoring water conditions in domestic potable water and radiant systems quickly and easily! SharkBite Max quick connector fittings are a project time and effort saver with less insertion force required for a stronger connection. Without the need for additional tools, glue, or soldering, these valves can be installed in wet lines and are approved for underground and behind-the-wall applications with no access panels (Wrapping required when burying underground). These push-to-connect pressure gauges are compatible with PEX, PE-RT, CPVC, SDR-9 HDPE, and copper pipe fixtures. Rated to 150 degrees F and 150 PSI.