---
product_id: 635850465
title: "Tondiamo 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC)"
brand: "tondiamo"
price: "₱7739"
currency: PHP
in_stock: true
reviews_count: 8
category: "Tondiamo"
url: https://www.desertcart.ph/products/635850465-tondiamo-4-inch-backwater-valve-drain-backflow-preventer-valve-prevent
store_origin: PH
region: Philippines
---

# Corrosion-resistant, leak-proof Flange inlet for secure fit 4-inch robust PVC shield Tondiamo 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC)

**Brand:** tondiamo
**Price:** ₱7739
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stop Backflow Before It Starts — Stay Dry, Stay Ahead!

## Quick Answers

- **What is this?** Tondiamo 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC) by tondiamo
- **How much does it cost?** ₱7739 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/635850465-tondiamo-4-inch-backwater-valve-drain-backflow-preventer-valve-prevent)

## Best For

- tondiamo enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Premium corrosion-resistant PVC ensures long-term reliability even in harsh environments.
- • **Versatile Application:** Perfect for residential, commercial, agricultural, and industrial drainage systems—one valve fits all.
- • **Ultimate Backflow Defense:** Protect your space from costly sewage and rainwater backflow with precision-engineered PVC durability.
- • **Cost-Effective Peace of Mind:** Affordable protection that saves you from expensive water damage repairs.
- • **Effortless Installation & Operation:** Simple flange connection and automatic function mean zero hassle and zero maintenance.

## Overview

The Tondiamo 4 Inch Backwater Valve is a durable, corrosion-resistant PVC valve designed to prevent sewage and rainwater backflow. Featuring a secure 4-inch flange inlet, it offers easy installation and automatic operation with minimal maintenance. Ideal for a wide range of drainage systems, this cost-effective valve delivers reliable protection for residential, commercial, and industrial use.

## Description

Buy Tondiamo 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC): Pipe Fittings - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: muyy bueno - Perfceto para tu drenaje. facil y economico
Review: Buena - Producto exelente

## Features

- Layered Protection Against Sewage Backflow: this PVC backwater valve is an effective backflow preventer valve that specifically designed to protect your premises from the potential threats of sewer backflow; It delivers reliable protection and peace of mind with its excellent functionality
- Easy to Use: backwater valves are generally simple in design, easy to install and require no additional maintenance; After installed, they function automatically without human intervention
- Sturdy Durable Construction: our backwater preventer valve is crafted from quality PVC material; This solid PVC backwater valve resists corrosion and ensures minimal wear and tear even with regular use
- Affordable: compared to other devices that prevent sewage backflow, the PVC backwater valve is usually more affordable and is a nice option
- Wide Applicability: due to the corrosion resistance and durability of the PVC material, the PVC backwater valve is suitable for a variety of drainage systems, including domestic, commercial and industrial environments; Irrigation, household, horticulture, industry, agriculture, construction, agriculture, water treatment and swimming pools, etc

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Tondiamo |
| Exterior Finish | PVC |
| Inlet Connection Size | 4 Inches |
| Inlet Connection Type | Flange |
| Item dimensions L x W x H | 10.63 x 7.28 x 7.09 inches |
| Material | Pvc |

## Product Details

- **Brand:** Tondiamo
- **Exterior Finish:** PVC
- **Inlet Connection Size:** 4 Inches
- **Inlet Connection Type:** Flange
- **Item dimensions L x W x H:** 10.63 x 7.28 x 7.09 inches
- **Manufacturer:** Tondiamo
- **Material:** Pvc
- **Outlet Connection Size:** 4 Inches
- **Outlet Connection Type:** Flange

## Images

![Tondiamo 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC) - Image 1](https://m.media-amazon.com/images/I/61b5wAmG0xL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ muyy bueno
*by M***U on January 16, 2026*

Perfceto para tu drenaje. facil y economico

### ⭐⭐⭐⭐⭐ Buena
*by M***S on November 29, 2025*

Producto exelente

### ⭐⭐⭐⭐⭐ Very happy
*by K***R on June 7, 2025*

Got it last year I installed it sometime around four of last year 24 so far it’s doing its job. I live on the bottom of the hill and the water comes up over the sewer and I had that drain in my backyard that taps into the sewer and it acts like a overflow and I don’t have that problem no more very happy

## Frequently Bought Together

- Tondiamo Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC,4 Inch)
- Fernco P1056-44 Flexible PVC Pipe Coupling for Cast Iron, Plastic or Steel to Cast Iron, Plastic or Steel Connections

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**Shop now:** [https://www.desertcart.ph/products/635850465-tondiamo-4-inch-backwater-valve-drain-backflow-preventer-valve-prevent](https://www.desertcart.ph/products/635850465-tondiamo-4-inch-backwater-valve-drain-backflow-preventer-valve-prevent)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-01-29*