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Air Vents

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If local codes allow, these auto air vents are the perfect solution when standard venting is not a feasible option.

Air Admittance Valves by STUDOR®
Mini-Vent air admittance valves Maxi-Vent air admittance valves These air admittance valves feature:
  • Pressure sensitive valve
  • Opens upon fixture discharge
  • Admits air into drain, waste and vent systems
  • Closes to prevent foul air inside
  • Can be used as individual, branch, circuit or stack vent
  • Expands architectural design limits
  • Reduces the number of fire-stopping applications
  • Exclusive vermin protection system
  • Limited lifetime warranty for replacement of defective valves
  • Should not be exposed to outdoor elements
  • Considered "the standard" by some
  • No roof penetration
  • NSF Standard 14
  • ASSE 1051, 1050 rated
  • IAMPO Classified Marking

Mini-Vent - will vent up to 24 DFUs on stack - click for dimensions Price & Quantity
Mini-Vent® for 1 1/2" or 2" pipe - each $27.95
Mini-Vent® for 1 1/2" or 2" pipe - 6 ea. (CASE QTY) $157.95
Mini-Vent® for 1 1/2" and 2" pipe - with protective cover $29.95
Mini-Vent® for 1 1/2" and 2" pipe - 6 ea. (CASE QTY) with protective cover $168.95
 
Maxi-Vent - will vent up to 500 DFUs on a stack - click for dimensions Price & Quantity
Maxi-Vent® for 3" or 4" pipe (vent stack) - each $39.95
Maxi-Vent® for 3" or 4" pipe (vent stack) - 6 ea. (CASE QTY) $227.95

NOTE: For 3" vent, a hubless coupling #NH30 will be needed

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STUDOR® Maxi-CAP for Maxi-Vents shown above
STUDOR Maxi-Cap The STUDOR® MAXI-CAP is specifically designed to protect MAXI-VENTS® from damaging UV rays and temperature extremes when installed outdoors.

Prior to installing a Maxi-Vent, Maxi-Cap can be painted to match roof color for aesthetics.

Click here for dimensions
Description Price & Quantity
Maxi-Cap UV protective cap for Maxi-Vents $19.95

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Multi-Purpose* Recess Box by Studor® For Mini-Vent
Studor multi-purpose recess box
Mini-vent inside recess box
Studor multi-purpose recess box
Mini-vent inside recess box with grill cover

The Mini-Vent may be installed inside or outside using the Multi-purpose Recess Box. It has "cut-outs" to allow in-wall installation on 1-1/2", 2", and 3" pipes.

This multi-purpose recess box features:
  • Allows in-wall mounts
  • Outdoor use (side-wall venting)
  • Alternative to venting through the roof
  • * May be used as a washing machine box
Description Price & Quantity
Studor® Multi-Purpose Recess Box with grill and screws - for Mini-Vent $18.95

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How Studor® Air Admittance Valves Work
Studor venting Studor sealed
When a plumbing fixture is operated and water drains out of the system, negative pressure causes the valve to open, allowing air to enter as needed to equalize the pressure and protect trap seals from siphonage. When the flow stops, gravity closes the valve, preventing the escape of sewer gases through the valve.

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PVC & ABS Air Admittance Valves (AAV's) by Ayrlett
  • Pressure sensitive valve
  • Opens upon fixture discharge
  • Admits air into drain, waste & vent system
  • Closes to prevent foul air inside
  • Can be used as individual, branch, circuit or stack vent
  • Expands architectural design limits
  • Reduces the number of fire-stopping applications
  • Limited lifetime warranty for replacement of defective valves
  • Should not be exposed to outdoor elements
  • No roof penetration
  • Reference to model plumbing codes
  • IPC 2003, IRC 2003, BOCA 1993
  • UPC 301.2, AM&M 2003
Auto Vent Fits inside 2" fitting or over 1-1/2" pipe
1-1/2" Slip x 1-1/4" Female Pipe Thread
1-1/4" Male Pipe Thread
Fits inside 2" pipe or over 1-1/2" pipe
Description Price & Quantity
PVC - AAV - 2" - 1-1/2" with 2" - 1-1/2" solvent x 1-1/4" male threaded adapter $24.95
ABS - AAV - 2" - 1-1/2" with 2" - 1-1/2" solvent x 1-1/4" male threaded adapter $24.98

Order 6 or more of the PVC or ABS AAV's for greater savings

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Sure-Vent® Air Admittance Valves by Oatey®
Oatey sure vent
click here to view larger image
This air admittance valve features:
  • Pressure sensitive valve
  • Opens upon fixture discharge
  • Admits air into drain, waste and vent systems
  • Closes to prevent foul air inside
  • No roof penetrations
  • NSF compliance listing to NSF Standard 14
  • Glues into both 1-1/2" and 2" PVC (and threads into 2")
  • ANSI/ASSE 1050, 1051 rated for 1-1/2" thru 4" diameter
  • Handles up to 15 psi positive pressure
  • Does not need cold weather protection
  • Should not be exposed to outdoor elements
  • Manufacturer recommends at least one vent stack to open air
  • Not as large as the Studor® Maxi-Vent® (above)
Description Price & Quantity
Sure-Vent® each $28.95
Sure-Vent® 6 ea. (CASE QTY) $155.95

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1-1/2" Auto Trap Vent
autovents for mobile homes This auto trap vent features:
  • Generally used in mobile homes, rv's, and trailers (not code in many areas for homes)
  • Used in places where non-mechanical venting is impossible to install
  • Operates mechanically with a spring and rubber diaphragm

Description Price & Quantity
1-1/2" Auto Trap Vent $3.79

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STUDOR® Maxi-Filtra
STUDOR Maxi-Filtra vent pipe filter The STUDOR® Maxi-Filtra operates as a two way vent, which filters air in both directions. Its active carbon filter is designed to eliminate bad odors produced by the plumbing drainage system.

The Maxi-Filtra is for outdoor use only, particularly for use with septic systems, but can also be installed on existing open vent pipes and in systems in which air admittance valves (AAVs) are installed.
This vent pipe filter features:

Description Price & Quantity
Maxi-Filtra air vent filter for 3" or 4" pipe
Order 6 or more for greater savings!
$44.95
Replacement cartridge for Maxi-Filtra Studor
Order 6 or more for greater savings!
$12.49

NOTE: For 3" vent, a hubless coupling #NH30 will be needed

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We recommend plumbing your vents to the outside per your local codes.
Using the above-mentioned vents may not be code approved in all areas.

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