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Oatey 39239 Sure Vent Air Admittance Valve 6 DFU Installation Kit with White Tubular Adapter

4.0 out of 5 stars 33 customer reviews
| 5 answered questions

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  • Sure-Vent Air Admittance Valve - 6 DFU with Tubular Adapter
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$20.65 & FREE Shipping on orders over $49. Details Only 9 left in stock (more on the way). Ships from and sold by Amazon.com in easy-to-open packaging. Gift-wrap available.

Frequently Bought Together

  • Oatey 39239 Sure Vent Air Admittance Valve 6 DFU Installation Kit with White Tubular Adapter
  • +
  • Oatey 39016 Sure-Vent Air Admittance Valve with 1-1/2-Inch by 2-Inch PVC Adapter, 2-Inch
Total price: $40.44
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Product Description

Product Description

Sensitivity to pressure changes, combined with its ability to consistently open and close, is what distinguishes the Oatey Sure-Vent AAV from all others. Superior engineering along with stringent quality standards ensure a lifetime of unmatched performance. Available in 6, 20, 160, and 500 DFU.

From the Manufacturer

Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry

Product Information

Technical Details

Part Number 39239
Item Weight 8 ounces
Product Dimensions 4.5 x 13.5 x 6.5 inches
Item model number 39239
Size 1.5
Color White
Material PVC
Item Package Quantity 1
Certification certified frustration-free
Batteries Included? No
Batteries Required? No
Warranty Description 1-year limited

Additional Information

ASIN B000RUL1WY
Customer Reviews
4.0 out of 5 stars 33 customer reviews

4.0 out of 5 stars
Best Sellers Rank #57,413 in Home Improvements (See top 100)
#37 in Home Improvement > Building Supplies > Building Materials > Roofing > Vents > Roof Vents
Shipping Weight 1.1 pounds (View shipping rates and policies)
Domestic Shipping Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
International Shipping This item is not eligible for international shipping. Learn More
Date First Available June 11, 2007

Warranty & Support

Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

This is pretty much the best $28 you'll ever spend. Do you have a slow drain? First do the obvious: snake the drain to make sure you don't have a clog. No clog but still a slow drain? You should try this out. There are not a lot of explanations for slow drains. Most common cause is a clog. After that, venting is possibly the issue. For water to drain as quickly as we need it to there has to be air on both ends of the system. The gigantic pipe your house feeds into in the public sewer system gives air on that end. The vent through your roof gives air on this end. If you have inadequate venting, you'll have slow drains. Also, your drains will probably smell bad at least sometimes as the water that would otherwise be sitting nicely in the trap (which blocks sewer gases from entering your home and smelling it up) gets sucked down. Poorly vented drain = empty trap. Empty trap = odors. Install this - the kit comes with everything you need including a diagram. The only thing you'll need is a hacksaw to cut for length. These nuts should not be wrench tightened anyway, so you seriously only need a hacksaw to trim the length of pieces as needed. I have told everyone I know about this thing, which solved what I had feared would have to be a major job (i.e. new stack)... highly, highly recommend. Now, all things fail over time, but when this fails you'll know it. How? Slow drains again, probably an odor, and if you listen real close when it's working you'll hear the air going in. Check that out so you can know when you do not hear it, which means to replace it. I installed two years ago and have had perfect function to date. Good luck.
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If you notice there are different AAV part numbers/prices. Thats due to different DFU loads for each valve. Make sure to get the correct AAV (valve) for your application. There are four different rated AAV. After reading at Oatey website each one is rated at 6, 20,160,500 DFU. Below is what I found and should help you choose witch AVV is for you.

Make the right choice

Sensitivity to pressure changes, combined with its ability

to consistently open and close, is what distinguishes the

Oatey® Sure-Vent® AAV from all others. Superior engineering

along with stringent quality standards ensure a lifetime of

unmatched performance.

Available in 6, 20, 160, and 500 DFU. An air admittance

valve’s ability to breathe is measured in Drainage Fixture

Units or DFUs. The higher the DFU rating on the valve, the

greater amount of air that can enter the DWV system. DFU

loads are assigned to plumbing fixtures dependent on the

volume rate of discharge, the duration of operation and

the time between operations. Common fixture load ratings

are shown in the table.

To ensure proper breathing capability, determine all

fixtures to be vented and calculate the total DFU load,

then select the appropriate Sure-Vent® for the application.

Each Oatey Sure-Vent® cap indicates its maximum DFU

rating — 6, 20, 160 and 500 DFUs.

Example: In a house with a laundry room and bathroom sharing a common wall, the DFU load

would total nine. Five for the bathroom, three for the washing machine and one for the laundry

tub. The 20 DFU Sure-Vent® is the right AAV for the job.
Read more ›
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I installed the kit in a bathroom vanity sink which was not draining because of inadequate venting. Initially after installation, the sink still would not drain and I could hear gurgling through the bathtub drain. I ran water through the bathtub drain which seemed to create enough pressure to open the AAV valve which allowed the sink to drain quickly and it's been working fine ever since. It was very frustrating when the newly installed AAV didn't seem to be working. But it may be that it needs a little extra "push" the first time.
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The problem was a small sink located too far from the roof vent. Occasionally water would be sucked out of the drain trap by a strong flow in other pipes, allowing sewer odors to escape. This AAV was installed in less than 20 minutes, under the counter, between the trap and the wall. Problem solved.

I learned about this plumbing product by accident. When I asked for it at the local building supply store they didn't know what it was. Amazon to the rescue again.
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Verified Purchase
I am not a plumber and couldn't possibly give you a thorough explanation of how these things function in a house's plumbing system.

I do know, though, that when we started getting some foul odors coming from the kitchen sink of our 7 1/2 year old house and those odors couldn't be stopped by any amount of cleaning, I decided to do some investigating under the sink. Before this, I didn't even realize that there was one of these air admittance valves under our sink, but there it was -- and that was the source of the odor.

This thing basically is a valve which opens to let air in when water runs down the drain and then closes when the water has stopped. You need it to close because it's on the downstream side of the P-trap, so if the valve wears out after tens of thousands of uses as mine did, you'll get sewer stench flowing back into your house -- yuck!

Once I'd pinpointed the source of the problem, it was an easy fix. I just made sure I was buying a replacement valve with the same thread size as the existing one so I could simply unscrew the old one and screw the new one in. Problem solved -- no more stench!!!!

I didn't use the supplied PVC pipe because I was simply replacing the valve itself, not doing a new installation.
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