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The Oatey Mushroom Vent Cap is made of high-impact PVC and requires no assembly. It includes 3 hex-head bolts for ease of installation. The fully assembled mushroom vent cap fits 3 in. and 4 in. vent stacks to prevent debris, water and various critters from entering the vent pipe. Oatey products have earned the trust of plumbing professionals for over 100 years.
- Mushroom vent cap fitting 3 or 4 in. vent stacks
- Fully assembled and includes 3 hex-bolts
- Made of high-impact PVC construction
- Prevents debris, water and critters from entering the vent pipe, while still allowing the proper air flow through
- For DWV applications
- 4 in. maximum pipe outer diameter
- Muted color tone
- Easy to install
The purpose of an Air Admittance Valve is to provide a method of allowing air to enter the plumbing drainage system without the use of a vent extended to open air and to prevent sewer gases from escaping into a building. An Air Admittance Valve is a 1-way valve designed to allow air to enter the plumbing drainage system when negative pressures develop in the piping system. The device shall close by gravity and seal the vent terminal at zero differential pressure (no flow conditions) and under positive internal pressures.
- For use as a secondary vent
- Complies to ASSE standard 1050 and 1051
- 1-size approved to handle up to 2 in. vent pipe
- Offers unmatched breathing capability with a unique sealing system
- Closes by gravity
- Limited warranty
Help prevent sewer gas from entering your home while you vent your drain line with the Oatey 1-1/2 in. ABS In-Line Cheater Vent. This spring-loaded vent uses negative pressure to open and positive pressure to close. Also replaces secondary stack venting.
- ABS construction
- Use to vent drain lines
- Helps prevent sewer gas from entering your home
- Push to connect
- Spring-loaded to open with negative pressure and close with positive pressure
- NSF-24 listing for use in recreational vehicles