---
product_id: 308656912
title: "WELD-ON Studor 20340 Mini-Vent Air Admittance Valve with ABS Adapter, 1-1/2-or 2-Inch Connection"
brand: "weld-on"
price: "€ 84.37"
currency: EUR
in_stock: true
url: https://www.desertcart.be/products/308656912-weld-on-studor-20340-mini-vent-air-admittance-valve-abs
store_origin: BE
region: Belgium
---

# Vermin protection system 160 DFUs capacity -40°F to 150°F range WELD-ON Studor 20340 Mini-Vent Air Admittance Valve with ABS Adapter, 1-1/2-or 2-Inch Connection

**Brand:** weld-on
**Price:** € 84.37
**Availability:** ✅ In Stock

## Summary

> 🚽 Breathe Easy with WELD-ON: Your Plumbing's Best Friend!

## Quick Answers

- **What is this?** WELD-ON Studor 20340 Mini-Vent Air Admittance Valve with ABS Adapter, 1-1/2-or 2-Inch Connection by weld-on
- **How much does it cost?** € 84.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/308656912-weld-on-studor-20340-mini-vent-air-admittance-valve-abs)

## Best For

- weld-on enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Fit:** Compatible with both 1-1/2 and 2-inch piping for seamless installation.
- • **Code Compliant:** Meets ANSI/ASSE standards, ensuring safety and reliability in your plumbing system.
- • **Odor-Free Living:** Innovative design prevents unpleasant odors, ensuring a fresh environment.
- • **Durable & Reliable:** Constructed from high-quality ABS, built to withstand extreme temperatures.
- • **Compact & Efficient:** Perfect for single or multiple fixtures, maximizing space and performance.

## Overview

The WELD-ON Studor 20340 Mini-Vent Air Admittance Valve is a compact and efficient solution for maintaining optimal drainage and ventilation in your plumbing system. With a capacity of 160 DFUs on a branch and 24 DFUs on a stack, it effectively prevents the loss of water seals and unpleasant odors. Designed for 1-1/2 and 2-inch piping, this valve operates within a temperature range of -40°F to 150°F and features a unique vermin protection system, making it a reliable choice for any bathroom or drain setup.

## Description

WELD-ON Studor 20340 Mini-Vent Air Admittance Valve with ABS Adapter, 1-1/2-or 2-Inch Connection

## Features

- Compact air admittance valve with ABS adapter
- Ideal for a single fixture or group of fixtures; capacity of 160 DFUs (drain fixture units) on a branch and 24 DFUs on a stack
- Creates ventilation that prevents the loss of water seals in traps; uses gravity to automatically close seal and prevent circulation of unpleasant bathroom or drain odors
- Fits 1-1/2- and 2-inch piping; temperature rating of -40°F to 150°F (-40°C to 65.6°C); complies to ANSI/ASSE 1050 and 1051; this style air admittance valve is not recognized as a mechanical vent in the International Building Code
- Exclusive vermin protection system keeps out bugs and foreign objects

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Inlet Connection Type | Flange |
| Outlet Connection Type | FNPT |
| Exterior Finish | Abs |
| Outlet Connection Size | 2 Inches |
| Item Dimensions | 8.9 x 8.9 x 15.2 centimeters |
| Material Type | Acrylonitrile Butadiene Styrene (ABS) |

## Product Details

- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Brand:** WELD-ON
- **Item dimensions L x W x H:** 8.9 x 8.9 x 15.2 centimeters
- **Exterior finish:** Abs
- **Inlet connection type:** Flange

## Images

![WELD-ON Studor 20340 Mini-Vent Air Admittance Valve with ABS Adapter, 1-1/2-or 2-Inch Connection - Image 1](https://m.media-amazon.com/images/I/71xav1NOrJL.jpg)

## Questions & Answers

**Q: Why is this product listed under electronics > computers&accessories > networkingproducts > networkadapters > powerlinenetworkadapters**
A: If you plug this into your pc, it will free up hard drive admittance and the network will all speed up..  but the adaptor hasent been invented yet, guess the manufacturers have high hopes..

**Q: will the threads screw into a 1 1/2 threaded fitting?**
A: Yes, this screws directly into a 1 1/2" pipe threading. It also comes with an adapter for a 2" pipe.

**Q: what is life span for mini vent**
A: We just replaced two, both had replaced vents that were about 8 years old.

**Q: Are these suitable for exterior vent pipes?**
A: My understanding is they are only for use inside. They eliminate the need to connect new fixtures to the main stack.

## Frequently Bought Together

- Studor 20340 Mini-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection
- Studor 20380 Recessed Air Admittance Valve Box and Grill
- Studor 20346 Redi-Vent Air Admittance Valve with PVC Adapter, White, 1-1/2- or 2-Inch Connection

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**Shop now:** [https://www.desertcart.be/products/308656912-weld-on-studor-20340-mini-vent-air-admittance-valve-abs](https://www.desertcart.be/products/308656912-weld-on-studor-20340-mini-vent-air-admittance-valve-abs)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-10-18*