---
product_id: 3438345
title: "Oatey 3 in. PVC Backwater Valve"
brand: "oatey"
price: "€ 133.43"
currency: EUR
in_stock: true
url: https://www.desertcart.be/products/3438345-oatey-3-in-pvc-backwater-valve
store_origin: BE
region: Belgium
---

# Elastomeric quick-action seal Hand-tightened neoprene cap 3-inch PVC durable barrier Oatey 3 in. PVC Backwater Valve

**Brand:** oatey
**Price:** € 133.43
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal on backflow before it seals your fate!

## Quick Answers

- **What is this?** Oatey 3 in. PVC Backwater Valve by oatey
- **How much does it cost?** € 133.43 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/3438345-oatey-3-in-pvc-backwater-valve)

## Best For

- oatey enthusiasts

## Why This Product

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

## Key Features

- • **Versatile Fit:** Designed to fit 1.5-inch Sch. 40 DWV pipes or 2-inch couplings for seamless installation.
- • **Compact & Lightweight:** Only 2.35 lbs and 8x7x7 inches—powerful protection without bulk.
- • **Rapid Seal Technology:** Elastomeric flapper ensures instant, watertight protection every time.
- • **Tool-Free Maintenance:** Threaded access cap with neoprene seal allows easy hand tightening or removal—no tools needed.
- • **Ultimate Basement Defense:** Stops costly backflow from street sewers, protecting your low-lying spaces.

## Overview

The Oatey 3 in. PVC Backwater Valve is a robust plumbing solution designed to prevent backflow and sewage intrusion in basements and low areas. Featuring a quick-action elastomeric seal and a hand-tightened neoprene access cap, it offers reliable, tool-free maintenance and fits standard 1.5 to 2-inch pipes. Lightweight and compact, it ensures durable protection with easy installation backed by a 1-year limited warranty.

## Description

Buy Oatey 3 in. PVC Backwater Valve: Pool Filter Valves - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- 3 in. PVC backwater valve
- Protects low areas or basements from backflow or waste from street sewers
- Elastomeric seal in quick action flapper ensures a water tight seal
- Threaded access cap incorporates a neoprene seal for positive sealing and can be tightened or removed by hand
- 1-1/2-Inch or 2-Inch, 6-Inch x 6-Inch Utility Drain -Inch Fits over 1 1/2-Inch Sch. 40 DWV pipe or into 2-Inch coupling

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Oatey |
| Part Number | 43900 |
| Item Weight | 2.35 pounds |
| Product Dimensions | 8 x 7 x 7 inches |
| Item model number | 43900 |
| Size | 3 Inch |
| Color | White |
| Style | PVC |
| Material | Polyvinyl Chloride |
| Item Package Quantity | 1 |
| Measurement System | inch |
| Included Components | PVC Backwater Valve |
| Batteries Required? | No |
| Warranty Description | 1-year limited |

## Product Details

- **Brand:** Oatey
- **Exterior Finish:** PVC
- **Inlet Connection Size:** 3 inches
- **Inlet Connection Type:** threaded
- **Item dimensions L x W x H:** 8 x 7 x 7 inches
- **Material:** Polyvinyl Chloride (PVC)
- **Number of Packs:** 1
- **Number of Ports:** 2
- **Outlet Connection Size:** 6 inches
- **Outlet Connection Type:** Threaded

## Images

![Oatey 3 in. PVC Backwater Valve - Image 1](https://m.media-amazon.com/images/I/618QLZcEC-L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: This is a type of check valve correct? The ability to take the lid off serves what purpose? Could you run a snake down the line with the top off?**
A: Taking the lid off allows you to clear debris out of the valve. Yes--you get full access to the line from the top of the valve. I use it to drain a yard that floods during high tide. Works well.

**Q: Can this valve be used under ground?**
A: Yes, our Backwater valves can be used underground.  You can also install an access sleeve (straight piece of pipe) in order to service the valve at the surface.

**Q: I received this valve and it came with a seal for the flapper. However, the seal will not stay in the grove on the flapper. Any suggestions?**
A: Hi. It comes with 2 O rings,  one is for the flapper, add some syllicon glue, like the used on motor engines,  this backwater works really good,

**Q: Does this fit 3" schedule 40?**
A: Yes, 3" schedule 40 PVC

## Frequently Bought Together

- Oatey 3 in. PVC Backwater Valve
- Oatey 4 in. PVC Backwater Valve
- Supply Giant 37622CS No-Hub Coupling Heavy Duty Colored Shield, 4 inch, Red

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---

*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-09-07*