Oatey 160 DFU Sure-Vent Air Admittance Valve w/ 1-1/2" x 2" ABS Schedule 40 adapter

The Oatey Sure-Vent 1.5" – 2" 160 Branch, 24 Stack DFU Air Admittance Valve with ABS Schedule 40 adapter is a one-way valve designed to allow air into the plumbing drainage system when negative pressures develop in the piping system, eliminating the need to tie into a stack vent. 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. Features: Apply approved pipe joint compound or thread seal tape to the male threads of the valve For use as a secondary vent ABS Schedule 40 adapter One size approved to handle up to 3" vent pipe Vents up to 160 DFU Branch or 24 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...