---
product_id: 660288761
title: "4\" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow"
brand: "cinsda"
price: "RM733"
currency: MYR
in_stock: true
reviews_count: 5
category: "Cinsda"
url: https://www.desertcart.com.my/products/660288761-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve
store_origin: MY
region: Malaysia
---

# Watertight EPDM & rubber seals Heat & corrosion resistant 4-inch PVC durable build 4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow

**Brand:** cinsda
**Price:** RM733
**Availability:** ✅ In Stock

## Summary

> 🚫💧 Stop Backflow, Start Peace of Mind!

## Quick Answers

- **What is this?** 4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow by cinsda
- **How much does it cost?** RM733 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/660288761-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve)

## Best For

- cinsda enthusiasts

## Why This Product

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

## Key Features

- • **Robust Durability:** Crafted from high-impact PVC, engineered to resist heat, corrosion, and wear over time.
- • **Leakproof Seal Technology:** Thickened rubber rings and EPDM seals guarantee zero water or sewage leakage.
- • **Seamless 4" PVC Integration:** Effortlessly connects with standard 4-inch drainage systems for a flawless fit.
- • **Trusted Backflow Prevention:** Effectively blocks sewage backflow, protecting your home or business from costly damage.
- • **Simple, Solvent-Weld Installation:** Quick, secure, and watertight setup saves time and hassle on every project.

## Overview

This 4-inch PVC backwater valve is a high-impact, corrosion-resistant plumbing solution designed to prevent sewage backflow in residential and industrial drainage systems. Featuring thickened rubber and EPDM seals for a watertight barrier, it installs easily via solvent welding and ensures reliable protection against costly water damage.

## Description

Wide range of uses: Made of hard PVC and corrosion resistance. Perfect for indoor and outdoor use, drainage and sewer piping systems; patio, lawn, garden, and septic tank piping systems etc. Installed in the PVC drain and sewer pipe system.

Review: Funciona perfecto. Cera plagas, cero olores, de afuera hacia adentro.
Review: Works as it should

## Features

- Designed for connecting 4-inch PVC drains in the drainage system, this valve prevents the backflow of water in the pipeline due to pressure reduction or other potential causes.
- The backwater valve is made of durable PVC for high impact strength and resistance to heat and corrosion.
- Our back flow preventer valve can be solvent-welded for a watertight connection. The installation is simple and efficient.
- Thickened rubber rings embedded in the water stop baffle guarantee a watertight seal, and the access cover is also sealed with EPDM rubber to prevent water leakage.
- The backflow valve, as part of the DWV system, is suitable for connecting PVC sewers and drains. Ideal for sewage disposal in household and certain industries, it prevents sewer backflow.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D3QTWTCR |
| Batteries Required? | No |
| Best Sellers Rank | 93,449 in Business, Industry & Science ( See Top 100 in Business, Industry & Science ) 2,983 in Pipe Fittings |
| Certification | CSA, NSF, ULC, UPC |
| Colour | White |
| Customer Reviews | 4.8 4.8 out of 5 stars (39) |
| Date First Available | 28 Sept. 2024 |
| Included Components | 4" Backwater Valve |
| Item Weight | 1.68 kg |
| Item model number | 4IBVBD |
| Manufacturer | Cinsda |
| Material | Polyvinyl Chloride |
| Number of Pieces | 1 |
| Part Number | 4IBVBD |
| Product Dimensions | 24.89 x 17.78 x 17.22 cm; 1.68 kg |
| Size | 4 Inch |

## Product Details

- **Brand:** Cinsda
- **Colour:** White
- **Connector type:** Tee
- **Exterior finish:** PVC
- **Item dimensions L x W x H:** 24.9 x 17.8 x 17.2 centimetres
- **Item weight:** 1.68 Kilograms
- **Material:** Polyvinyl Chloride
- **Size:** 4 Inch
- **Thread size:** 4 inches
- **Thread type:** Solvent Weld

## Images

![4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 1](https://m.media-amazon.com/images/I/61VNt5B7hVL.jpg)
![4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 2](https://m.media-amazon.com/images/I/5186wy5rzWL.jpg)
![4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 3](https://m.media-amazon.com/images/I/61L4frhBBAL.jpg)
![4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 4](https://m.media-amazon.com/images/I/61nTO-wtAiL.jpg)
![4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow - Image 5](https://m.media-amazon.com/images/I/51d2iWhSxjL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***. on 28 February 2026*

Funciona perfecto. Cera plagas, cero olores, de afuera hacia adentro.

### ⭐⭐⭐⭐⭐ Review
*by R***S on 10 October 2025*

Works as it should

### ⭐⭐⭐⭐⭐ Review
*by A***R on 15 September 2025*

Seemed good enough, we'll find out if water doesn't backflush

## Frequently Bought Together

- Cinsda 4" PVC Backwater Valve, 4 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow
- Cinsda 3" PVC Backwater Valve, 3 Inch Back Flow Preventer Valve, Backflow Water Valve Prevents Sewage Backflow
- Tondiamo Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC,4 Inch)

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**Shop now:** [https://www.desertcart.com.my/products/660288761-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve](https://www.desertcart.com.my/products/660288761-4-pvc-backwater-valve-4-inch-back-flow-preventer-valve)

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-03-12*