---
product_id: 9574482
title: "Oatey 4 In. PVC Backwater Valve - 1 Each"
brand: "oatey"
price: "R$1197"
currency: BRL
in_stock: true
category: "Oatey"
url: https://www.desertcart.com.br/products/9574482-oatey-4-in-pvc-backwater-valve-1-each
store_origin: BR
region: Brazil
---

# 4-inch PVC fit Quick-action elastomeric seal Hand-tightened threaded access cap Oatey 4 In. PVC Backwater Valve - 1 Each

**Brand:** oatey
**Price:** R$1197
**Availability:** ✅ In Stock

## Summary

> 🚫 Stop Backflow Like a Pro — Protect Your Space with Oatey!

## Quick Answers

- **What is this?** Oatey 4 In. PVC Backwater Valve - 1 Each by oatey
- **How much does it cost?** R$1197 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/9574482-oatey-4-in-pvc-backwater-valve-1-each)

## 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

- • **Tool-Free Access Cap:** Neoprene-sealed cap allows easy inspection and maintenance by hand.
- • **Trusted Legacy Brand:** Oatey’s century-long reputation guarantees professional-grade reliability.
- • **Universal Hub Design:** Adaptable to DWV, sewer, and drain pipes for broad application.
- • **Rapid-Response Flapper Seal:** Elastomeric seal ensures instant, watertight backflow protection.
- • **Precision 4-Inch PVC Compatibility:** Seamlessly fits Schedule 40 pipes for versatile plumbing integration.

## Overview

The Oatey 4-Inch PVC Backwater Valve is a high-performance sewage check valve designed to prevent backflow into basements or low-lying areas. Featuring a quick-action elastomeric flapper seal and a hand-tightened threaded access cap with neoprene seal, it ensures reliable, watertight protection. Compatible with Schedule 40 PVC pipes and adaptable to various plumbing systems, this valve combines professional-grade durability with easy maintenance, backed by Oatey’s 100+ years of trusted plumbing expertise.

## Description

Product Description The Oatey Backwater Valve is designed as a sewage check valve to prevent pumped water from flowing back into the basin. Its elastomeric seal inside the flapper ensures a tight seal, preventing fluid from entering. Oatey products have earned the trust of plumbing professionals for over 100 years. From the Manufacturer Oatey products can be found in residential and commercial applications and have achieved excellent brand name recognition with consumers. All products are backed with the highest quality technical and customer support programs in the industry

## Features

- 4 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
- Valve hub fits DWV pipe and can be adapted for sewer and drain pipe
- Entire valve assembly
- Fits 4 in. PVC Schedule 40 pipe
- Can accommodate access sleeves made of Schedule 40 pipe
- Hub by hub solvent weld connection

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BQSFJ6 |
| Best Sellers Rank | #209,833 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #269 in Faucet Valves |
| Brand Name | Oatey |
| Connector Type | connector_type |
| Customer Reviews | 4.6 4.6 out of 5 stars (288) |
| Exterior Finish | White |
| Global Trade Identification Number | 00038753439044 |
| Included Components | Backwater Valve |
| Inlet Connection Size | 4 inches |
| Inlet Connection Type | threaded |
| Item Dimensions | 11.25 x 8 x 7.4 inches |
| Item Type Name | Oatey |
| Item Weight | 4.3 pounds |
| Manufacturer | Oatey |
| Manufacturer Part Number | 43904 |
| Manufacturer Warranty Description | 1-year limited |
| Material Type | PVC |
| Model Number | 43904 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Number of Pieces | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 4 inches |
| Outlet Connection Type | FNPT |
| Size | 4 Inch |
| Specification Met | ASME, ASTM, ANSI |
| Thread Size | 4 inches |
| Thread Type | threaded |
| UPC | 038753439044 |
| Unit Count | 1 Count |
| Valve Type | backwater,backwater valve |

## Product Details

- **Brand:** Oatey
- **Exterior Finish:** White
- **Inlet Connection Size:** 4 inches
- **Inlet Connection Type:** threaded
- **Item dimensions L x W x H:** 11.25 x 8 x 7.4 inches
- **Material:** PVC
- **Number of Ports:** 1
- **Outlet Connection Size:** 4 inches
- **Outlet Connection Type:** FNPT
- **Specification Met:** ASME, ASTM, ANSI

## Images

![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 1](https://m.media-amazon.com/images/I/71s0SuMm6LL.jpg)
![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 2](https://m.media-amazon.com/images/I/41vybOdXBKL.jpg)
![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 3](https://m.media-amazon.com/images/I/31wyoZn6pDL.jpg)
![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 4](https://m.media-amazon.com/images/I/316nIJCvfjL.jpg)
![Oatey 4 In. PVC Backwater Valve - 1 Each - Image 5](https://m.media-amazon.com/images/I/31jor5SwcnL.jpg)

## Available Options

This product comes in different **Color, 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 4 in. PVC Backwater Valve
- Oatey 3 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 Brazil*
*Store origin: BR*
*Last updated: 2026-10-07*