---
product_id: 56668644
title: "Oatey 43900 Backwater Valve for DWV Pipe, White, 3 Inch"
brand: "oatey"
price: "5060240₫"
currency: VND
in_stock: true
category: "DIY &amp; Tools"
url: https://www.desertcart.vn/products/56668644-oatey-43900-backwater-valve-for-dwv-pipe-white-3-inch
store_origin: VN
region: Vietnam
---

# Oatey 43900 Backwater Valve for DWV Pipe, White, 3 Inch

**Brand:** oatey
**Price:** 5060240₫
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Oatey 43900 Backwater Valve for DWV Pipe, White, 3 Inch by oatey
- **How much does it cost?** 5060240₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/56668644-oatey-43900-backwater-valve-for-dwv-pipe-white-3-inch)

## Best For

- oatey enthusiasts

## Why This Product

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

## Description

Oatey 43900 Backwater Valve for DWV Pipe, White, 3 Inch

## 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 43900 Backwater Valve for DWV Pipe, White, 3 Inch - Image 1](https://images-eu.ssl-images-amazon.com/images/I/31B2sfjGJJL.jpg)

## 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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**Shop now:** [https://www.desertcart.vn/products/56668644-oatey-43900-backwater-valve-for-dwv-pipe-white-3-inch](https://www.desertcart.vn/products/56668644-oatey-43900-backwater-valve-for-dwv-pipe-white-3-inch)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-02-14*