This series can be used in a variety of installations, including the prevention of health hazard cross connections in piping systems or for containment at the service line entrance. This series features two in-line, independent check valves, captured springs and replaceable check seats with an intermediate relief valve.

• Single access cover and modular check construction for ease of maintenance
• Top entry - all internals immediately accessible
• Captured springs for safe maintenance
• Internal relief valve for reduced installation clearances
• Replaceable seats for economical repair