Sure-Vent 1-1/2" Air Admittance Valve Installation Kit, Pack of 6 pcs

• For use as a secondary vent
• Tubluar adapter
• One size approved to handle up to 2" vent pipe
• Vents up to 24 DFU Branch or 8 DFU Stack
• Sweet Spot™ technology opens valve at -0.01 psi and seals at 0 psi and above
• Screening on air inlets to guard the seal
• Protective sleeve provides grip for installation and keeps valve free from debris
• 100% functionally tested at ¼" H2O and 30" H2O ensuring trouble free performance
• Complies to ASSE Standard 1050 and 1051
• International Plumbing Code (IPC) and Uniform Plumbing Code (UPC) approved

Oatey's Air Admittance Valve installation kit includes (1) Sure-Vent® 20 DFU Branch / 8 DFU Stack Air Admittance (1) 1-1/2" P-trap, (1) 6" extension tube, (1) PVC threaded adapter and (1) deep box flange. The Sure Vent® Air Admittance valve is a one-way valve designed to allow air into the plumbing drainage system when negative pressures develop in the piping system. Superior engineering along with stringent quality standards ensure unmatched performance as a secondary vent. Oatey products have earned the trust of plumbing professionals for over 100 years.