So can this vent inside a basement with no odor? We bought a house that has zero roof vents. Can this be used in place of those?

Don't think I 'd iinstall it in the basement. It needs to be above the fixture(s) that it vents. I've used smaller AAVs for indivuaul fixtures and placed them under the cabinet/sink or in the wall. The larger AAVs are desgined to handle several fixtures and replace the need for a large vent that penetrates the roof. These I've placed in the attack (below the roof but inside the building) and have not had any problems.

How long does one of these last until it needs to be replaced? Is there a way to tell if it has failed besides escaped sewer gas smell?

Package shows limited lifetime warranty. I assume when you smell sewer gasses, it has failed, but I really don't expect it to fail. All I know, is that it works and so far, I'm very pleased with the performance.

Does it come with a push-fit connector donut (wide o-ring) for connecting to inside of 4" pipe? Shown on spec sheet, but not for item.

No… just the item. Fits inside 4” sch 40 PVC coupling or 4” Fernco rubber coupling

Is it acceptable to use a rubber boot?

This goes INSIDE the attic. No boot needed.

Studor 20302 Maxi Vent 3 Inch To 4 Inch Air

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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18372 som

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your plumbing game with the Maxi-Vent—vent smarter, not harder!

ODOR CONTROL READY - Optional replaceable carbon filter reduces unpleasant plumbing odors, keeping your space fresh.
CERTIFIED RELIABILITY - Meets ASSE, NSF, and IAPMO standards for trusted, code-compliant performance.
SLEEK DURABLE DESIGN - Crafted from high-grade ABS plastic for long-lasting, maintenance-free performance.
SPACE SAVING INSTALLATION - Eliminates costly roof penetrations and complex vent piping—streamline your setup effortlessly.
MAXIMIZE VENTING EFFICIENCY - Handles up to 500 DFUs, ensuring flawless pressure equalization for your plumbing system.

The Studor 20302 Maxi-Vent is a high-performance air admittance valve designed for 3- to 4-inch pipes, venting up to 500 DFUs. Made from durable ABS plastic and certified to ASSE, NSF, and IAPMO standards, it simplifies plumbing venting by eliminating roof penetrations and reducing odors with an optional carbon filter. Ideal for professional-grade, code-compliant installations.

Specifications

ASIN	B000NID704
ASIN	B000NID704
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#88,704 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #240 in Registers, Grilles & Vents
Color	White
Customer Reviews	4.6 4.6 out of 5 stars (189)
Customer reviews	4.6 4.6 out of 5 stars (189)
Date First Available	15 September 2013
Date First Available	15 September 2013
Included components	IPS STUDOR MAXI VENT
Item Package Quantity	1
Item Weight	249 g
Item model number	GIDDS-301050
Item model number	GIDDS-301050
Manufacturer	Alfi
Manufacturer	Alfi
Material	Acrylonitrile Butadiene Styrene
Part number	GID-301050
Product Dimensions	8.89 x 8.89 x 15.24 cm; 249.48 g
Product Dimensions	8.89 x 8.89 x 15.24 cm; 249.48 g
Size	5-1/4 inche
Specification met	ASSE, IAPMO, NSF

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18372 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

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Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve

Description

Specifications

Common Questions