---
product_id: 3438345
title: "Oatey 3 in. PVC Backwater Valve"
brand: "oatey"
price: "B/.122"
currency: PAB
in_stock: true
reviews_count: 8
url: https://www.desertcart.com.pa/products/3438345-oatey-3-in-pvc-backwater-valve
store_origin: PA
region: Panama
---

# Elastomeric seal ensures watertight protection 3-inch PVC size for versatile fit Threaded access cap for easy maintenance Oatey 3 in. PVC Backwater Valve

**Brand:** oatey
**Price:** B/.122
**Availability:** ✅ In Stock

## Summary

> 🚰 Seal your space from sewer surprises with Oatey’s backwater valve!

## Quick Answers

- **What is this?** Oatey 3 in. PVC Backwater Valve by oatey
- **How much does it cost?** B/.122 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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

- • **Trusted Legacy:** Backed by Oatey’s 100+ years of plumbing expertise
- • **Tool-Free Access:** Hand-tightenable neoprene-sealed cap for hassle-free inspections
- • **Compact & Durable:** Lightweight 2.35 lbs PVC design fits standard 3-inch pipes
- • **Precision Seal Technology:** Quick-action flapper with elastomeric seal locks out waste
- • **Ultimate Basement Defense:** Prevents costly backflow damage in low-lying areas

## Overview

The Oatey 3-inch PVC Backwater Valve is a professional-grade plumbing solution designed to protect basements and low areas from sewer backflow. Featuring a quick-action elastomeric seal flapper and a hand-tightenable neoprene-sealed access cap, it offers reliable, maintenance-friendly performance. Lightweight and compatible with standard 3-inch pipes, this valve carries the trusted quality of Oatey’s century-long plumbing legacy.

## Description

Oatey 3 in. PVC Backwater Valve

## 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
- 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 |

## Images

![Oatey 3 in. PVC Backwater Valve - Image 1](https://m.media-amazon.com/images/I/318CI1MW2DL.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Stops toilet from overflowing
*by V***N on October 21, 2023*

My downstairs bathroom toilet overflowed twice due to septic tank backing up. I installed this and now I never need to worry about the toilet overflowing, ruining my flooring. Very easy to install in you know how. Easy to maintain. Wish I did this years ago. Very good quality. Works perfect. Fits perfect. Silent operation does not restrict flow.

### ⭐⭐⭐⭐⭐ O ring problem
*by L***R on September 12, 2025*

The seal on flapper was gone when opened to see why wasn't working need new o ring

### ⭐⭐⭐⭐⭐ First class product.  Not one drawback or problem.
*by K***R on May 7, 2025*

100% perfect. I bought 4 to use around my house to solve hurricane surge isssues in Florida.

## 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 Panama*
*Store origin: PA*
*Last updated: 2026-03-16*