Features:

• For venting single fixtures, kitchen sinks and bathroom groups including back to back applications up to 20 dfu
• Exclusive vermin protection system
• Expands architectural design limits
• Compact design for tight applications
• Fits 1 1/2" and 2" pipe sizes
• Limited lifetime warranty for replacement of defective valves
• Residential or commercial use
• Ansi/asse 1051, ansi/asse 1050, nsf 14, etl, icc-es pmg-1025, c-iapmo