---
product_id: 90999459
title: "Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection"
brand: "weld-on"
price: "HK$418"
currency: HKD
in_stock: true
reviews_count: 5
category: "Weld On"
url: https://www.desertcart.hk/products/90999459-studor-20349-redi-vent-air-admittance-valve-with-abs-adapter
store_origin: HK
region: Hong Kong
---

# Supports up to 20 DFUs Operates -40°F to 150°F Exclusive vermin protection Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection

**Brand:** weld-on
**Price:** HK$418
**Availability:** ✅ In Stock

## Summary

> 🚿 Elevate your plumbing game with smart, sealed ventilation!

## Quick Answers

- **What is this?** Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection by weld-on
- **How much does it cost?** HK$418 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/90999459-studor-20349-redi-vent-air-admittance-valve-with-abs-adapter)

## 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

- • **Odor-Free Assurance:** Gravity-sealed design blocks unpleasant smells
- • **Bug-Proof Innovation:** Exclusive vermin barrier keeps pests out
- • **Built to Brave Extremes:** Reliable performance from freezing cold to scorching heat
- • **Universal Fit Flexibility:** Fits both 1-1/2 and 2-inch pipes seamlessly
- • **Effortless Ventilation Control:** Prevents water seal loss without roof vents

## Overview

The Studor 20349 Redi-Vent Air Admittance Valve with ABS adapter is a compact, durable solution designed for single or multiple fixtures up to 20 drain fixture units. It prevents water seal loss and odors without roof venting, fits standard 1-1/2 and 2-inch pipes, operates reliably between -40°F and 150°F, and features an exclusive vermin protection system for a clean, efficient plumbing setup.

## Description

Simplify drainage and waste venting with the Studor Redi-Vent Air Admittance Valve. The unique design of the Studor Redi-Vent provides ventilation to prevent the loss of water seals in traps without the need for expensive roof penetration and vent piping. 1-1/2 or 2 Inch, NPT, 2.625 Inch Vent Height, 2 Inch Vent Dia, ABS, Temperature Rating: -40 to 150 deg F

Review: Cumplió con las expectativas para lo cual la compré satisfecho al 100
Review: Our home is in a rural area and we have a septic system. In the lower level of our home, we have a septic pit that handles the gray and septic waste from a 3 piece bathroom. The septic pit is directly vented to the main vent of the building that leads to the roof. When the septic pit is full, a pump comes on and pumps the effluent to the main septic line for the septic system. But the pump is so powerful that every time it worked, it also emptied every P trap and toilet in the house. This is not only annoying but also a very dangerous situation that then allows septic gases to enter the home. I purchased this Air Admittance Valve and attached it above the 2" vent pipe coming directly out of the septic pit. It works perfectly, drawing only the air from the immediate area and not from the entire venting system. No more worries about septic gases. However, the 2" ABS adapter that comes with the product is only designed to take the Air Admittance Valve that screws in at one end, and a 2" ABS pipe that you seal to the other. This was fine for me, but if you were intending to attach it to a 1 1/2" ABS pipe, you would also need an additional adapter to do so.

## Features

- Compact air admittance valve with ABS adapter; ideal for a single fixture or group of fixtures up to 20 DFUs (drain fixture units) on a branch
- Creates ventilation that prevents the loss of water seal in trap
- Uses gravity to automatically close seal and prevent circulation of unpleasant bathroom or drain odors
- Fits 1-1/2-inch 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 |
|---------------|-------|
| ASIN | B00MOOGOAU |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 210,869 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 21 in Diaphragm Valves |
| Colour | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,097) |
| Date First Available | 11 Aug. 2014 |
| Included components | 20349 |
| Item Package Quantity | 1 |
| Item Weight | 0.28 g |
| Item model number | 20349 |
| Manufacturer | IPS Corporation |
| Material | Polyvinyl Chloride |
| Number of Pieces | 1 |
| Part number | 20349 |
| Product Dimensions | 7.62 x 7.62 x 8.89 cm; 0.28 g |
| Shape | Cone |
| Size | 1/4 Pint (4 fl oz) |
| Style | ABS Adapter |

## Product Details

- **Brand:** WELD-ON
- **Colour:** White
- **Connector type:** Adapter, Trap
- **Exterior finish:** ABS
- **Item dimensions L x W x H:** 7.6 x 7.6 x 8.9 centimetres
- **Item weight:** 0.01 Ounces
- **Material:** Polyvinyl Chloride
- **Size:** 1/4 Pint (4 fl oz)
- **Thread size:** 1-1/2-inch, 2-inch
- **Thread type:** NPT

## Images

![Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection - Image 1](https://m.media-amazon.com/images/I/31N6QLlemYL.jpg)
![Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection - Image 2](https://m.media-amazon.com/images/I/31nZOEiUpKL.jpg)
![Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection - Image 3](https://m.media-amazon.com/images/I/41TUfndZHzL.jpg)
![Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection - Image 4](https://m.media-amazon.com/images/I/41it8cfyiOL.jpg)
![Studor 20349 Redi-Vent Air Admittance Valve with ABS Adapter, 1-1/2- or 2-Inch Connection - Image 5](https://m.media-amazon.com/images/I/41l-B8mFGnL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by F***O on 17 December 2023*

Cumplió con las expectativas para lo cual la compré satisfecho al 100

### ⭐⭐⭐⭐⭐ Review
*by G***E on 9 December 2021*

Our home is in a rural area and we have a septic system. In the lower level of our home, we have a septic pit that handles the gray and septic waste from a 3 piece bathroom. The septic pit is directly vented to the main vent of the building that leads to the roof. When the septic pit is full, a pump comes on and pumps the effluent to the main septic line for the septic system. But the pump is so powerful that every time it worked, it also emptied every P trap and toilet in the house. This is not only annoying but also a very dangerous situation that then allows septic gases to enter the home. I purchased this Air Admittance Valve and attached it above the 2" vent pipe coming directly out of the septic pit. It works perfectly, drawing only the air from the immediate area and not from the entire venting system. No more worries about septic gases. However, the 2" ABS adapter that comes with the product is only designed to take the Air Admittance Valve that screws in at one end, and a 2" ABS pipe that you seal to the other. This was fine for me, but if you were intending to attach it to a 1 1/2" ABS pipe, you would also need an additional adapter to do so.

### ⭐⭐⭐⭐⭐ Review
*by P***R on 16 July 2019*

Great product

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-03-09*