---
product_id: 86120410
title: "Nordisk 100mm Rat Blocker. Made From Marine Grade Acid Resistant Stainless Steel With A One Way Valve & Two Serrated Flaps For Double Protection. Easy To Install Industrial Rat Valve."
brand: "metex"
price: "3302 Lei"
currency: RON
in_stock: true
reviews_count: 8
url: https://www.desertcart.ro/products/86120410-nordisk-100mm-rat-blocker-made-from-marine-grade-acid-resistant
store_origin: RO
region: Romania
---

# WRC Approved Marine Grade Steel Double Protection Nordisk 100mm Rat Blocker. Made From Marine Grade Acid Resistant Stainless Steel With A One Way Valve & Two Serrated Flaps For Double Protection. Easy To Install Industrial Rat Valve.

**Brand:** metex
**Price:** 3302 Lei
**Availability:** ✅ In Stock

## Summary

> 🚫 Keep the Rats Out, Let the Water Flow!

## Quick Answers

- **What is this?** Nordisk 100mm Rat Blocker. Made From Marine Grade Acid Resistant Stainless Steel With A One Way Valve & Two Serrated Flaps For Double Protection. Easy To Install Industrial Rat Valve. by metex
- **How much does it cost?** 3302 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/86120410-nordisk-100mm-rat-blocker-made-from-marine-grade-acid-resistant)

## Best For

- metex enthusiasts

## Why This Product

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

## Key Features

- • **Certified Quality:** WRC & VA approved for peace of mind.
- • **Easy Installation:** Designed for hassle-free setup in any drain system.
- • **Proven Performance:** Trusted by professionals with over 250K units installed worldwide.
- • **Ultimate Rat Defense:** Stop rats in their tracks with double serrated flaps!
- • **Marine-Grade Durability:** Built to withstand the toughest environments.

## Overview

The MetexNordisk 100mm Rat Blocker is a robust solution crafted from marine-grade acid-resistant stainless steel, featuring a unique one-way valve and double serrated flaps to effectively prevent rat ingress through drainage systems. With over 250,000 units installed globally and recognized by WRC and VA certifications, this rat blocker is the go-to choice for both professionals and DIY enthusiasts seeking reliable rodent control.

## Description

Nordisk 100mm Rat Blocker. Made From Marine Grade Acid Resistant Stainless Steel With A One Way Valve & Two Serrated Flaps For Double Protection. Easy To Install Industrial Rat Valve.

## Features

- STOP RATS TRAVELLING THROUGH DRAINS: One of the primary ingress points for rats into a domestic or commercial property is via the drainage system, either directly from the main sewers or a collapse within the pipe. A Rat blocker is installed within the inspection chamber to stop rats movement upstream. By installing a Rat Blocker all upstream branches are protected.
- DOUBLE PROTECTION: The Metex Ratwall has two sharp serrated flaps for double protection from rat infestations. This also allows liquids and solid waste to pass down the system whilst preventing access to rats moving upstream. The rats cannot pass or chew through the barrier flap, thus preventing their access to re-infest. All models of the Nordisk Rat Blocker are supplied with reversible flaps so that the same unit can be used in either inlet or outlet pipes.
- WRC & VA APPROVED: The only UK rat blocker to achieve Water Research Centre Approval, the benchmark in UK water industry. The Nordisk rat blocker has also passed the stringent VA Approval issued by the Danish certification body, ETA-Denmark, and inspected by the Danish Technological Institute.
- PROVEN PROFESSIONAL RAT BLOCKER: Over 250K units installed worldwide, this rat flap is proven in professional pest control use over 10 years and used in 1 in 6 Danish homes. All parts of the rat valve are made of marine grade 316 acid-resistant stainless steel for demanding environments. Unique patented design with expanding sides allows the rat valve to slide into the drain without friction. Easy to adjust for drain inlet or outlet positions
- METEX: We specialise in non-toxic rodent control equipment including our Nordisk and Ratwall rat valves as well as RatTape proofing tape. We are a UK business that designs and manufactures innovative products for construction professionals and the DIY market, working with manufacturers both in the UK and overseas.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions | 23.1 x 22.1 x 11.6 cm; 1.34 kg |
| Part number | RAT92016 |
| Material type | Stainless Steel |
| Manufacturer | Nordisk |
| Manufacturer reference | RAT92016 |
| ASIN | B07G5HG1ZL |

## Product Details

- **Brand:** Metex
- **Style:** Classic
- **Material:** Stainless Steel
- **Item weight:** 1.34 Kilograms
- **Number of pieces:** 1
- **Target species:** Rat
- **Unit count:** 1100.0 gram(s)

## Images

![Nordisk 100mm Rat Blocker. Made From Marine Grade Acid Resistant Stainless Steel With A One Way Valve & Two Serrated Flaps For Double Protection. Easy To Install Industrial Rat Valve. - Image 1](https://m.media-amazon.com/images/I/51IhCFywCWL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: Do you have to check the flaps often to make sure they are not blocked?**
A: I did check for the first few weeks after fitting, but i could not see any problems, you dont have to check under the flaps you will soon know if there are problems as you will have a blockage. Now i just have a quick look every six weeks or so, it all looks good no problems so far. It has been fitted for about five months now. Its very well made and it works.

**Q: hi, i have a clay pipe with an internal diameter of approx 5.5 inches. the outside diameter is 6 inches i believe, would this fit/ work?**
A: Good Afternoon, 

Thank you for your enquiry regarding Ratwall and Nordisk. 
We’d really need to know the exact internal diameter of your pipe to be able to advise as the tolerances are in mm. 
The 6” Nordisk TX11 has a tolerance of 147 – 151mm

I look forward to hearing from you.

Many thanks,
Lucy

**Q: Hi does it come with the pole for installation please?**
A: You can get a pole seperately but it doesn't come with it

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Rolls Royce of Rat Blockers
*by P***0 on 5 October 2023*

God forbid if you ever need one of these .... but if you do then this is definitely the one to buy. Yes, it's very expensive but you get what you pay for. A top quality product that does the job.

### ⭐⭐⭐⭐⭐ Works Brilliantly
*by M***6 on 6 April 2024*

Does what it say on the tin easy to put in and been in for some time and had no problems with it.

### ⭐⭐⭐⭐ Very good but know these things in advance
*by M***R on 13 February 2025*

I have installed two of these in my drains to deter rats from accessing the drains at my house from the main sewer. I have installed them on the sewer/outlet side of two inspection chambers. This means that if there is ever any blockage then it should be in the chamber and not in the pipes and hence should be easier to deal with. The rat blockers are easy enough to install but I did need the installation pole that I purchased at the same time. £40+ is a lot for a metal rod but it made installation possible rather than impossible. Installation was held up by 24 hours because the instructions say to coat with anti-seize grease the screw thread on the part of the assembly that tighens and loosens the fit for installation. This ensures that in the future it would be possible to remove the unit easily for servicing or whatever. It is always good to have a future maintenance option if needed and the anti-seize grease should stop the nut binding up on the thread in what is a wet and corrosive environment. The recommended ceramic anti-seize products in the instructions are hard to source in the UK. I used SilverHook Ceramic Grease - search B007D3H5G4 on Amazon. I believe this will work as well. I recommend buying it at the same time as the blocker. It is annoying that the need for such a product is not highlighted up front. I used a endoscope camera to check the fit. There is a larger gap under the flaps than I would wish. Rats can squeeze through very narrow gaps. Time will tell if this is an issue. Note that there will generally be a reason why the rats are attracted into your drains. In my case, it was a pipe that had been rendered redundant after building work some years ago. This was providing the rats with dry safe shelter. Online information suggests that this is a classic problem with properties that have been extended. Builders should close off any redundant pipework but they do not always do so. I used a drain plug to close off the redundant pipe run than luckily ended in an inspection chamber rather than under a new extension. Search for B00PFXQWOA on Amazon to find the style of plug that I used. These plugs tighten up in the redundant pipe and keep the rats out. Removing any such opportunity for shelter or food source whatever else it is that is attracting the rats will help remove the incentive for them to challenge the drain blocker. Time will tell if this combination of actions has been effective.

## Frequently Bought Together

- Metex - Nordisk 100mm Rat Blocker. Made From Marine Grade Acid Resistant Stainless Steel With A One Way Valve & Two Serrated Flaps For Double Protection. Easy To Install Industrial Rat Valve.
- Metex Online 1mt Nordisk TX11 Rat Blocker Installation Pole

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-26*