---
product_id: 635850465
title: "4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC)"
brand: "tondiamo"
price: "$120.81"
currency: USD
in_stock: true
reviews_count: 9
category: "Tondiamo"
url: https://www.desertcart.us/products/635850465-4-inch-backwater-valve-drain-backflow-preventer-valve-prevent-sewage
store_origin: US
region: United States of America
---

# Prevents sewage & rainwater backflow Flange inlet/outlet for secure fit 4-inch PVC corrosion-resistant valve 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC)

**Brand:** tondiamo
**Price:** $120.81
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stop backflow before it starts—protect your space with Tondiamo!

## Quick Answers

- **What is this?** 4 Inch Backwater Valve Drain Backflow Preventer Valve Prevent Sewage and Rainwater from Flowing Back(White PVC) by tondiamo
- **How much does it cost?** $120.81 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/635850465-4-inch-backwater-valve-drain-backflow-preventer-valve-prevent-sewage)

## 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

- • **Durable PVC Build:** Crafted from corrosion-resistant PVC for long-lasting, maintenance-free performance.
- • **Versatile Application:** Perfect for residential, commercial, and industrial drainage systems alike.
- • **Effortless Installation:** Simple flange connections make setup quick—no expert needed, no fuss.
- • **Cost-Effective Protection:** Premium backflow prevention without breaking the budget—smart investment for peace of mind.
- • **Reliable Backflow Defense:** Engineered to block sewage and rainwater, safeguarding your property effortlessly.

## Overview

The Tondiamo 4 Inch Backwater Valve is a robust PVC backflow preventer designed to block sewage and rainwater from reversing into your drainage system. Featuring corrosion-resistant materials and easy flange connections, it offers durable, maintenance-free protection suitable for a wide range of applications from homes to industrial sites. With a high customer rating and affordable pricing, it’s a smart, reliable choice for safeguarding your property.

## 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: 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 |
|---------------|-------|
| ASIN | B0D3CVSHSY |
| Batteries Required? | No |
| Best Sellers Rank | #41,548 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,151 in Pipe Fittings |
| Brand | Tondiamo |
| Color | White PVC |
| Customer Reviews | 4.6 4.6 out of 5 stars (98) |
| Date First Available | May 6, 2024 |
| Exterior Finish | PVC |
| Included Components | 1 x Backwater |
| Inlet Connection Size | 4 Inches |
| Inlet Connection Type | Flange |
| Item Package Quantity | 1 |
| Item Weight | 3.78 pounds |
| Item dimensions L x W x H | 10.63 x 7.28 x 7.09 inches |
| Item model number | SD-Tondiamo-76353 |
| Manufacturer | Tondiamo |
| Material | Pvc |
| Outlet Connection Size | 4 Inches |
| Outlet Connection Type | Flange |
| Part Number | SD-Tondiamo-76353 |
| Product Dimensions | 10.63 x 7.28 x 7.09 inches |
| Size | 4 Inch |

## 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

![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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*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

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

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

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-01-23*