---
product_id: 242079799
title: "HLZC Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)"
brand: "hlzc"
price: "€ 55.04"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/242079799-hlzc-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink
store_origin: GR
region: Greece
---

# Eco-friendly flexible silicone Fits 1.5"-1.75" pipes Backflow & odor blocker HLZC Drain Backflow Preventer, One Way Valve, Adjustable Silicone Sink Floor Drain Trap for Pipes Tubes in Toilet Bathroom Kitchen (Blue-4)

**Brand:** hlzc
**Price:** € 55.04
**Availability:** ✅ In Stock

## Summary

> 🚿 Keep your drains fresh and your home vibe flawless!

## Quick Answers

- **What is this?** HLZC 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?** € 55.04 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/242079799-hlzc-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink)

## 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

- • **Universal Fit for Standard Pipes:** Seamlessly adapts to 1 1/2” to 1 3/4” pipes with adjustable rings for a perfect seal every time.
- • **Versatile Use Across Home Drains:** Ideal for toilets, kitchens, bathrooms, basements, and laundry areas—eliminate unpleasant smells everywhere.
- • **Advanced Odor & Backflow Protection:** Automatic shut-off design blocks sewer gases and prevents backflow, keeping your space fresh and hygienic.
- • **Effortless Plug & Play Installation:** No tools needed—just insert and trim if necessary for quick, hassle-free setup.
- • **Durable & Eco-Conscious Silicone Build:** Made from high-quality, stretchable silicone that resists deformation and lasts for years.

## Overview

The HLZC Drain Backflow Preventer is a modern, adjustable silicone valve designed to fit standard 1.5" to 1.75" pipes. It features an automatic shut-off mechanism that blocks sewer backflow and odors, ensuring a fresh environment. Made from durable, eco-friendly silicone, it offers easy plug-and-play installation and versatile use across multiple household drains including bathrooms, kitchens, and basements.

## Description

How to install it? Installation is very simple. Plug and play. Where can it be installed? It can be installed in floor drains or sewer pipes. For example: shower drain, basement drain, bathroom sink, kitchen sink, bathtub drain, laundry floor drain or sewer pipe, etc. Can it be installed in a 1.75-inch diameter ABS pipe? Of course. It is suitable for standard 1 1/2” to 1 3/4" pipe. Is it possible to fall into the sewer? It comes with a plastic enlarge adapter and a plastic retainer ring. If there is a gap after installation, you can also use Teflon tape to fix it in place. So please don't worry, there will be no risk of falling. Installation Guide: 1. Please measure precisely the internal diameter of drain opening, in case any inconvenience brought by unmatched size. 2. Because the stickiness and softness feature of silicone, make sure support apart the open of drain grate with your hands in the first installation for the smooth draining. Package Contains: 4 x Silicone Drain Backflow Preventer 4 x Enlarge Rings 4 x Retainer Rings

## 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 |
|---------------|-------|
| Manufacturer | HLZC |
| Part Number | 4 |
| Product Dimensions | 4.5 x 4.5 x 11.48 cm; 200 g |
| Item model number | 4 |
| Colour | Blue |
| Style | Modern |
| Finish | Brushed |
| Material | Silicone |
| Installation method | Floor-Mounted |
| Item Package Quantity | 1 |
| Special Features | Adjustable |
| Included Components | NO |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 200 g |

## Product Details

- **Brand:** HLZC
- **Colour:** Blue
- **Material:** Silicone
- **Finish type:** Brushed
- **Product dimensions:** 45W x 115H millimetres

## Images

![HLZC 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 **Colour Name** 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.gr/products/242079799-hlzc-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink](https://www.desertcart.gr/products/242079799-hlzc-drain-backflow-preventer-one-way-valve-adjustable-silicone-sink)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-01-22*