SharkBite Max check valves are spring-loaded and designed to prevent the reverse flow of water.  Max check valves can be installed horizontally or vertically.  Compatible with PEX, copper, CPVC, PE-RT or HDPE SDR-9 in any combination, Max check valves are ideal for working in tight spacecs and can be rotated after assembly.  

• Fastest way to connect PEX, copper, CPVC, PE-RT or HDPE SDR-9 pipe.*
• Half the insertion effort, double the burst pressure.**
• Can be installed on wet lines and pressure tested immediately.
• Stainless steel retainer adds strength and durability.
• High-performance DZR lead-free brass body.
• No special tools, crimping, soldering or glue required.
• Can be rotated after installation.
• No tube liner required for PEX.
• Rated to 200°F and 250 psi.
• 25-year warranty when properly installed on PEX, copper, CPVC and PE-RT.
• 5-year warranty when properly installed with HDPE SDR-9.