---
product_id: 13803038
title: "20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve"
price: "KD 27.48"
currency: KWD
in_stock: true
url: https://www.desertcart.com.kw/products/13803038-20302-maxi-vent-3-inch-to-4-inch-air-admittance
store_origin: KW
region: Kuwait
---

# Compact 3.5x3.5x6 inch size Vents up to 500 DFUs Durable ABS plastic build 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve

**Price:** KD 27.48
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your plumbing game—vent smarter, not harder!

## Quick Answers

- **What is this?** 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve
- **How much does it cost?** KD 27.48 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/13803038-20302-maxi-vent-3-inch-to-4-inch-air-admittance)

## Best For

- Customers looking for quality international products

## Why This Product

- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Footprint:** Space-saving dimensions fit seamlessly into any plumbing setup, perfect for modern renovations.
- • **Odor Control Ready:** Optional replaceable carbon filter reduces unpleasant drainage odors, keeping your space fresh.
- • **Certified Reliability:** Meets rigorous ASSE, NSF, and IAPMO standards for trusted, professional-grade plumbing solutions.
- • **Sleek, Durable Design:** Crafted from high-grade ABS plastic for long-lasting, maintenance-free performance.
- • **Maximize Vent Efficiency:** Handles up to 500 Drain Fixture Units, ensuring flawless pressure equalization without roof penetrations.

## Overview

The Studor 20302 Maxi-Vent is a compact, ABS plastic air admittance valve designed to vent up to 500 DFUs, eliminating the need for costly roof penetrations. Certified to multiple industry standards, it ensures reliable pressure equalization in drainage systems while optionally reducing odors with a replaceable carbon filter. Ideal for professional-grade plumbing installations seeking efficiency and sleek integration.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000NID704 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #95,787 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Diaphragm Valves |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (193) |
| Date First Available | September 9, 2006 |
| Included Components | IPS STUDOR MAXI VENT |
| Item Package Quantity | 1 |
| Item Weight | 8.8 ounces |
| Item model number | GIDDS-301050 |
| Manufacturer | Alfi |
| Material | Abs,Plastic |
| Part Number | GID-301050 |
| Product Dimensions | 3.5 x 3.5 x 6 inches |
| Size | 5-1/4 inche |

## Images

![20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve - Image 1](https://m.media-amazon.com/images/I/51Zq1PXutjL.jpg)

## Questions & Answers

**Q: 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?**
A: 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.

**Q: 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?**
A: 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.

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

**Q: Is it acceptable to use a rubber boot?**
A: This goes INSIDE the attic. No boot needed.

## Frequently Bought Together

- Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve
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- Oatey Sure-Vent 1-1/2 in.–2 in. 160 Branch, 24 Stack DFU Air Admittance Valve with White PVC Sch. 40 Adapter

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**Shop now:** [https://www.desertcart.com.kw/products/13803038-20302-maxi-vent-3-inch-to-4-inch-air-admittance](https://www.desertcart.com.kw/products/13803038-20302-maxi-vent-3-inch-to-4-inch-air-admittance)

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-05-15*