500 DFU Air Admittance Valve

• Screening on inside and outside of valve protects sealing assembly from insects and debris
• 3" Slip with 4" Slip Adapter
• Ability to divert condensation away from the sealing membrane
• Can be used as an alternative to extending a vent through the roof
• includes Push-Fit Rubber Adapter for 3" and 4" connections

Technical Data

	Spec Sheet
	Installation Instructions/Parts/Warranty
	Vendor Information (Permission Required)

Cross Reference

*Please note: We've done our best to identify the most similar products on the market that could cross to our quality Mainline product. The below products are not necessarily an exact match and could change at any time without warning.

•EVERFLOW:AAV34P
•IPS/STUDOR:20302; 20342
•OATEY:39223