---
product_id: 13803038
title: "Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve"
brand: "studor"
price: "€ 134.63"
currency: EUR
in_stock: true
url: https://www.desertcart.es/products/13803038-studor-20302-maxi-vent-3-inch-to-4-inch-air
store_origin: ES
region: Spain
---

# Compact 5.5" Dimensions Supports 500 DFU Durable ABS Plastic Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve

**Brand:** studor
**Price:** € 134.63
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate Your Venting Game!

## Quick Answers

- **What is this?** Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve by studor
- **How much does it cost?** € 134.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/13803038-studor-20302-maxi-vent-3-inch-to-4-inch-air)

## Best For

- studor enthusiasts

## Why This Product

- Trusted studor brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight Design:** Weighs only 8.8 ounces for easy installation.
- • **Versatile Application:** Ideal for circuit vent or stack type setups.
- • **Proudly Made in the USA:** Support local manufacturing with every purchase.
- • **Maximize Venting Efficiency:** Perfect for single fixture and branch applications.
- • **Robust Compliance Standards:** Meets ASSE, NSF, and IAPMO standards for peace of mind.

## Overview

The Studor20302 Maxi-Vent is a high-performance air admittance valve designed for efficient venting in various plumbing applications. Constructed from durable ABS plastic, it meets rigorous industry standards and is lightweight for easy installation. With dimensions of 5.5" L x 5.5" W x 8" H, it fits seamlessly into your plumbing system while supporting up to 500 DFU.

## Description

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

## Features

- For use with: Venting Single Fixture, Individual Branch, Circuit Vent Or Stack Type Application Up To 500 DFU
- Material of Construction: ABS Plastic
- Standards: ASSE Performance Standard 10510 And 1051, NES-592, NSF Standard 14, IAPMO, File No C-3803, ITS Intertek Testing Services
- Package Dimensions : 5.5" L x 5.5" W x 8" H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Alfi |
| Part Number | GID-301050 |
| Item Weight | 8.8 ounces |
| Product Dimensions | 3.5 x 3.5 x 6 inches |
| Item model number | GIDDS-301050 |
| Size | 5-1/4 inche |
| Color | White |
| Material | Abs,Plastic |
| Item Package Quantity | 1 |
| Included Components | IPS STUDOR MAXI VENT |
| Batteries Required? | No |

## Images

![Studor 20302 Maxi-Vent 3-Inch to 4-Inch Air Admittance Valve - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## 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
- Studor 20341 Mini-Vent Air Admittance Valve with PVC Adapter, 1-1/2- or 2-Inch Connection
- 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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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-23*