500 DFU Air Admittance Valve
Model #:
• Screening on inside & outside of valve protects sealing assembly from insects & 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
*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.•IPS/STUDOR:20302,20342 •OATEY:39223
• Screening on inside & outside of valve protects sealing assembly from insects & 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 Req’d) |
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.•IPS/STUDOR:20302,20342 •OATEY:39223
• Screening on inside & outside of valve protects sealing assembly from insects & 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 Req’d) |
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.•IPS/STUDOR:20302,20342 •OATEY:39223