SharkBite Max brass push-to-connect couplings make for quick and easy installations. Use the straight coupling to quickly connect two pieces of PEX, copper, CPVC, PE-RT or HDPE SDR-9 pipe in any combination. Approved for behind-the-wall and underground (when wrapped) applications. SharkBite Max push-to-connect brass pipe connectors are ideal for working in tight spaces and can be leveraged wherever repairs are needed. The faster install time and versatile use reduces installation errors, allowing pros to schedule more jobs in a day.