---
product_id: 487898747
title: "Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings"
brand: "rat blockers"
price: "₩371563"
currency: KRW
in_stock: true
reviews_count: 5
category: "Rat Blockers"
url: https://www.desertcart.kr/products/487898747-rat-blockers-stainless-steel-for-drains-twin-steel-valves-6
store_origin: KR
region: South Korea
---

# Fits 6-inch clay & plastic curved drain pipes Twin non-return valves for ultimate rodent block High-grade stainless steel, rust & gnaw resistant Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings

**Brand:** rat blockers
**Price:** ₩371563
**Availability:** ✅ In Stock

## Summary

> 🚫🐀 Lock out rats, unlock peace of mind!

## Quick Answers

- **What is this?** Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings by rat blockers
- **How much does it cost?** ₩371563 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/487898747-rat-blockers-stainless-steel-for-drains-twin-steel-valves-6)

## Best For

- rat blockers enthusiasts

## Why This Product

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

## Key Features

- • **Safe & Smart:** Chemical-free, kid-safe alternative to toxic pest control methods
- • **Built to Last:** Premium stainless steel resists rust and rodent gnawing for permanent protection
- • **Universal Fit:** Engineered for both clay and plastic 6-inch pipes, including curved fittings
- • **Dual-Valve Defense:** Twin steel flaps ensure free flow while blocking every rat attempt
- • **Hassle-Free Installation:** Compact, rigid design fits snugly without complex tools or pipe modifications

## Overview

The Rat Blockers Stainless Steel Drain Valve is a durable, twin-valve non-return system designed to permanently prevent rats from entering buildings through 6-inch clay or plastic drains. Crafted from rust- and gnaw-resistant stainless steel, it allows free water flow while blocking rodents, offering a safe, chemical-free solution backed by a 12-month warranty.

## Description

Steel Rat Blocker prevents rats from entering buildings through the drainage outlet. The non-return valve allows free flow of waste but blocks any rodents attempting entry in the other direction. You can stop calling your pest control and solve the problem once and for all. The Rat Blocker is an ideal solution to block rats from entering your property permanently. Our Rat Blocker is made from non-corrosive stainless steel and we offer a 12 month warranty. *Please note other cheaper alternatives only have 1 single valve which offers less protection *Rat Blocker is an immediate and permanent solution to stop the entry of rat/rodents *Rat Blockers can fit in both clay and plastic-type pipes in 4″ size. *Twin Non-Return Valves, Allows Free Flow but Also Blocks Rat Entry *Installing a Rat blocker will save you money on pest control and avoid unnecessary costs like lifting floorboards, removing plasterboards and more. *Rat blockers are much safer compared to conventional pest control, such as poisoning. Aside from the smelling rat carcass, having kids around the house with poison is not an ideal scenario. *Our rat blocker can fit in both clay and plastic-type pipes.

Review: Well made: rigid construction does the job well - The rat blocker was purchased for an underground drain to a domestic property in the UK. It could be placed at either end of the drain pipe but I suggest it is where the flow of soiled water enters the inspection chamber. If there is a blockage further up the rat blocker can easily be removed although it would work well anywhere in the pipe work. I asked if it was flexible but the circular casing is, in fact, rigid. This meant it on just fitted into the pipe and I only managed to go into the pipe half way because of the way the pipe had been laid. Effectively it is jammed into the pipe but this works fine. As it is so well made there have been no blockages and 'ratty' came through it tail first and I dragged his carcase out. He died from poisoning. Until I found and sorted the entry point into the drainage system other rats could get into the drain but none of them could get past the rat blocker. With its two flaps it is impassable. Water and excrement easily pass through when there is sufficient water flowing. If solid waste is sitting in the blocker the spikey, serrated edge of the flaps would impede anything trying to push past as the flap would close as it was pushed. I am glad and relieved I bought this product as it solved what would have been a difficult problem. Obviously, insert the rat blocker in the pipe with the flaps opening in the downward flow direction. My advice is to insert the blocker ( I did not need to use the bolt which is the clamp for larger pipes I presume) and sleep well.
Review: Expensive but excellent - Very robust. Great contraption. Not cheap but very good. Would recommend

## Features

- PERMANENT RAT ENTRY SOLUTION: Our rat blocker is an immediate and permanent solution to stop the entry of rat/rodents
- SUITABLE FOR CLAY & PLASTIC DRAINS: Our rat blockers can fit in both clay and plastic-type pipes in 6″ size.
- TWIN NON-RETURN VALVES: Twin Valves, Allowing Free Flow but Also Blocks Rat Entry
- RUST & GNAW RESISTANT: Created From High Performance Stainless Steel, Rust & Gnaw Resistant
- 12 MONTHS MANUFACTURE'S WARRANTY: Guaranteed Product Quality for Long Lasting Protection for Your Home and Drainage System

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BGM1S8WV |
| Best Sellers Rank | 72,725 in Garden ( See Top 100 in Garden ) 1,170 in Rodent Control |
| Customer Reviews | 4.4 4.4 out of 5 stars (20) |
| Date First Available | 27 Sept. 2022 |
| Item model number | 1 |
| Manufacturer | Rat Blockers |
| Part number | 1 |
| Product Dimensions | 14 x 14 x 14 cm; 670 g |

## Images

![Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings - Image 1](https://m.media-amazon.com/images/I/41-WToNeW3L.jpg)
![Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings - Image 2](https://m.media-amazon.com/images/I/415FSs-8wqL.jpg)
![Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings - Image 3](https://m.media-amazon.com/images/I/417+yt6yX5L.jpg)
![Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings - Image 4](https://m.media-amazon.com/images/I/41LaCY5w4eL.jpg)
![Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings - Image 5](https://m.media-amazon.com/images/I/41fEVaIvZHL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Well made: rigid construction does the job well
*by D***Y on 5 November 2022*

The rat blocker was purchased for an underground drain to a domestic property in the UK. It could be placed at either end of the drain pipe but I suggest it is where the flow of soiled water enters the inspection chamber. If there is a blockage further up the rat blocker can easily be removed although it would work well anywhere in the pipe work. I asked if it was flexible but the circular casing is, in fact, rigid. This meant it on just fitted into the pipe and I only managed to go into the pipe half way because of the way the pipe had been laid. Effectively it is jammed into the pipe but this works fine. As it is so well made there have been no blockages and 'ratty' came through it tail first and I dragged his carcase out. He died from poisoning. Until I found and sorted the entry point into the drainage system other rats could get into the drain but none of them could get past the rat blocker. With its two flaps it is impassable. Water and excrement easily pass through when there is sufficient water flowing. If solid waste is sitting in the blocker the spikey, serrated edge of the flaps would impede anything trying to push past as the flap would close as it was pushed. I am glad and relieved I bought this product as it solved what would have been a difficult problem. Obviously, insert the rat blocker in the pipe with the flaps opening in the downward flow direction. My advice is to insert the blocker ( I did not need to use the bolt which is the clamp for larger pipes I presume) and sleep well.

### ⭐⭐⭐⭐⭐ Expensive but excellent
*by C***S on 16 October 2022*

Very robust. Great contraption. Not cheap but very good. Would recommend

### ⭐⭐⭐⭐⭐ Stops the rats.
*by J***E on 15 September 2023*

I was having an issue with rats coming into our single storey extension via the bathroom and getting into the flat roof. We found that they were coming through the drains as the toilet waste pipe has a big hole in it. I saw these and got 3. Best money spent as these fit into the old drains perfectly and I like that there are 2 layers. They let the waste out but don't let anything in. So far so good, no more rats.

## Frequently Bought Together

- Rat Blockers Stainless Steel for Drains - Twin Steel Valves, 6-inch Rat Flap, Non-Return Valve, Shorter Design for Curved Fittings
- Roshield Rat Drain Guard | Stop Rats within Drainage & Properties | Rodent Flap Control & Prevention Proofing (Stainless Steel 4"/110mm)
- Retro Fit 110mm 4 inch Drain Non Return Valve with Stainless Steel Flap

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-28*