---
product_id: 214387923
title: "Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)"
brand: "hlzc"
price: "A$26"
currency: AUD
in_stock: true
url: https://www.desertcart.com.au/products/214387923-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor
store_origin: AU
region: Australia
---

# Fits 1.5"–1.75" pipes Trim-to-fit silicone length Automatic odor & backflow block Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)

**Brand:** hlzc
**Price:** A$26
**Availability:** ✅ In Stock

## Summary

> 🚫💨 Stop the stink, keep the flow—your pipes’ new best friend!

## Quick Answers

- **What is this?** Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) by hlzc
- **How much does it cost?** A$26 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/214387923-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor)

## Best For

- hlzc enthusiasts

## Why This Product

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

## Key Features

- • **Odor & Backflow Barrier:** Innovative one-way valve design locks out sewer gases and prevents backflow, keeping your space fresh and hygienic.
- • **Versatile for Every Room:** Ideal for toilets, kitchens, bathrooms, basements, and washing machine drains—upgrade your entire home’s air quality instantly.
- • **Universal Fit, Zero Hassle:** Adjustable rings ensure seamless compatibility with standard pipe sizes from 1.5" to 1.75"—no guesswork needed.
- • **Effortless DIY Installation:** Simply insert into your drain pipe—no tools or plumbing expertise required. Trim the silicone base for a perfect fit and quick drainage.
- • **Eco-Friendly Silicone Durability:** Crafted from premium, stretchable silicone that resists deformation and lasts, combining sustainability with performance.

## Overview

The HLZC Adjustable Silicone Drain Backflow Preventer is a modern, eco-friendly plumbing solution designed to fit standard 1.5" to 1.75" pipes. Its automatic one-way valve blocks unpleasant odors and sewer backflow while allowing smooth drainage. Made from durable, flexible silicone, it’s easy to install and trim for a perfect fit, making it ideal for toilets, kitchens, bathrooms, and more.

## Description

Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)

## Features

- It is suitable for standard 1 1/2” to 1 3/4" pipe. Please measure the pipes you want to use before buying to ensure that you can buy a suitable floor drain. There are two fixed rings that can meet the different needs of large and small pipes.
- The automatic shut-off design allows it to prevent odor and peculiar smell from the sewage gas; block the backflow of sewer; and it can also allow the water to easily drain.
- The installation is very simple, just put it directly into the sewer pipe. If the silicone part is too long, you can trim the flat bottom to achieve quick drainage.
- The floor drain is made of high-quality silicone, which is environmentally friendly, durable, stretchable without worrying about deformation, and super flexible.
- It is suitable for most toilets, bathrooms, kitchens, basements and washing machine sewers. After installation, you will no longer have peculiar smells in your room. Fresh air and enjoy a good life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | HLZC |
| Color | Blue |
| Material | Silicone |
| Finish Type | Brushed |
| Product Dimensions | 1.77"W x 4.52"H |
| Special Feature | Adjustable |
| Style | Modern |
| Number of Items | 10 |
| Manufacturer | HLZC |
| Global Trade Identification Number | 06221243457657 |
| Part Number | 4 |
| Item Weight | 7.1 ounces |
| Item model number | 4 |
| Finish | Brushed |
| Item Package Quantity | 1 |
| Special Features | Adjustable |
| Included Components | NO |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** HLZC
- **Color:** Blue
- **Material:** Silicone
- **Finish Type:** Brushed
- **Product Dimensions:** 1.77"W x 4.52"H

## Images

![Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4) - Image 1](https://m.media-amazon.com/images/I/61HyIDV3eIS.jpg)

## Available Options

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

## Questions & Answers

**Q: Would this be effective for a vent Backdraft. Would it flap and be noisy with air pushed through it?**
A: I think this should not be effective for a vent Backdraft. Of course you can also try it.

**Q: Does this fit standard US sink drains and showers ?**
A: Hello, you need to measure the opening of your drains. This fits 1 1/2" to 1 3/4" drain opening.

**Q: Will this stop water backflow?**
A: The bottom of this floor drain is closed, which can stop water backflow

**Q: How much air pressure does it take to activate airflow for waterless checkvalve vent?**
A: It needs normal or mild air pressure.

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**Shop now:** [https://www.desertcart.com.au/products/214387923-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor](https://www.desertcart.com.au/products/214387923-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink-floor)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-30*