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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R2502

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Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚀 Elevate your plumbing game with the Maxi-Vent – where efficiency meets innovation!

ODOR CONTROL READY - Optional replaceable carbon filter reduces drainage odors
CERTIFIED RELIABILITY - Meets ASSE, NSF, IAPMO standards for trusted plumbing safety
SIMPLIFY INSTALLATION - Eliminates costly roof penetrations and complex vent piping
SLEEK DURABLE DESIGN - Crafted from high-grade ABS plastic for long-lasting performance
MAXIMIZE VENTING EFFICIENCY - Supports up to 500 DFUs for powerful pressure equalization

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 compliant with top industry standards (ASSE, NSF, IAPMO), it streamlines plumbing venting by eliminating roof penetrations and reducing odors with an optional carbon filter. Ideal for modern, efficient drainage systems.

Specifications

ASIN	B000NID704
ASIN	B000NID704
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#90,578 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #251 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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