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, Max brass couplings offer the versatility to be permanently installed or provide a temporary fix while you work. 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.Fastest way to connect PEX, copper, CPVC, PE-RT or HDPE SDR-9 pipeHalf the insertion effort, double the burst pressureCan be installed on wet lines and pressure tested immediatelyStainless steel retainer adds strength and durabilityHigh-performance DZR lead-free brass bodyNo special tools, crimping, soldering or glue requiredCan be rotated after installationNo tube liner required for PEX25 year warranty when properly installed on PEX, copper, CPVC and PE-RT