---
product_id: 62740685
title: "Rentokil PSMR42 Rat and Mouse Weatherproof Blocks, Black, 11.5 x 11.5 x 11.5 cm"
brand: "rentokil"
price: "6860 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Rentokil"
url: https://www.desertcart.is/products/62740685-rentokil-psmr42-rat-and-mouse-weatherproof-blocks-black-11-5
store_origin: IS
region: Iceland
---

# Fast-acting rodent control Weatherproof black blocks 10x20g potent bait sachets Rentokil PSMR42 Rat and Mouse Weatherproof Blocks, Black, 11.5 x 11.5 x 11.5 cm

**Brand:** rentokil
**Price:** 6860 kr
**Availability:** ✅ In Stock

## Summary

> 🖤 Outsmart rodents rain or shine with Rentokil’s weatherproof power!

## Quick Answers

- **What is this?** Rentokil PSMR42 Rat and Mouse Weatherproof Blocks, Black, 11.5 x 11.5 x 11.5 cm by rentokil
- **How much does it cost?** 6860 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/62740685-rentokil-psmr42-rat-and-mouse-weatherproof-blocks-black-11-5)

## Best For

- rentokil enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Discreet:** 11.5 cm cube size fits seamlessly into any environment without drawing attention.
- • **Powerful Multi-Pack:** Includes 10 high-strength 20g blocks for extended, effective pest management.
- • **Safe Usage Guidelines:** Clear instructions minimize health risks while maximizing pest elimination efficiency.
- • **All-Weather Durability:** Designed to withstand rain and outdoor conditions, ensuring continuous rodent control.
- • **Trusted Brand Performance:** Rentokil’s proven formula delivers fast, reliable results against rats and mice.

## Overview

Rentokil PSMR42 Rat and Mouse Weatherproof Blocks come in a pack of 10 durable, black 20g bait blocks measuring 11.5 cm each side. Engineered for outdoor use, these weatherproof blocks provide fast and effective rodent control against mice and rats. Trusted by professionals, they combine potent active ingredients with a compact design, ensuring reliable pest elimination while maintaining safety when used as directed.

## Description

Product Description Rentokil Mouse & Rat Weatherproof Blocks - 10x20g Sachet Box Contains 10 x Rentokil PSMR42 Rat and Mouse Weatherproof Blocks

Review: This works and rats love it! - The only rat killer that works! Fast delivery.
Review: Good product - This is the second tub I have bought of these over time. Each time I have needed to use them they have worked ok. I found it takes four to six cubes to work on what seems to be a family of three or four rats. I found them more effective than the sealed bags.

## Features

- Contains 1,2-benzisothiazol-3(2H)-one; 1,2-benzisothiazolin-3-one(2634-33-5). May produce an allergic reaction.
- May cause damage to organs (blood) through prolonged or repeated exposure.
- To avoid risks to human health and the environment, comply with the instructions for use.
- Use biocides safely. Always read the label and product information before use.
- Rentokil Mouse & Rat Weatherproof Blocks - 10x20g Sachet

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07BFPBL8V |
| Best Sellers Rank | 6,889 in Garden ( See Top 100 in Garden ) 306 in Rodent Control |
| Brand | Rentokil |
| Brand Name | Rentokil |
| Colour | Black |
| Customer Reviews | 4.3 out of 5 stars 536 Reviews |
| EU Spare Part Availability Duration | 1 Years |
| Included Components | Rentokil Mouse & Rat Weatherproof Blocks - 10x20g Sachet |
| Is Electric | Yes |
| Item Dimensions L x W x H | 11.5L x 11.5W x 11.5H centimetres |
| Item Type Name | Rentokil Mouse & Rat Weatherproof Blocks - 10x20g Sachet |
| Item height | 11.5 centimetres |
| Manufacturer | Rentokil |
| Material | Bait blocks |
| Material Type | Bait blocks |
| Number of Pieces | 10 |
| Number of pieces | 10 |
| Product dimensions | 11.5L x 11.5W x 11.5H centimetres |
| Style | Rat and Mouse Weatherproof blocks |
| Style Name | Rat and Mouse Weatherproof blocks |
| Target Species | Mouse, Rat |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Rentokil
- **Colour:** Black
- **Style:** Rat and Mouse Weatherproof blocks
- **Material:** Bait blocks
- **Product dimensions:** 11.5L x 11.5W x 11.5H centimetres
- **Number of pieces:** 10
- **Is electric:** Yes
- **Target species:** Mouse, Rat
- **EU Spare Part Availability Duration:** 1 Years
- **Unit count:** 1.0 count

## Images

![Rentokil PSMR42 Rat and Mouse Weatherproof Blocks, Black, 11.5 x 11.5 x 11.5 cm - Image 1](https://m.media-amazon.com/images/I/81mqlFaZHzL.jpg)

## Questions & Answers

**Q: How long does it take for the rat to die after ingestation?**
A: As mentioned on the front of the packet, this kills in one feed. We unfortunately do not have a specific time for for when this fully works.

**Q: Anyone know if birds will peck at this? Rats I want to get rid off,, not my Robins :]**
A: I would only use with a bait box, which will stop birds,  pets and children from getting to the blocks, the one I purchased already had blocks in so was ready to use. It worked after one feed as no evidence of being eaten again so suggests it really does kill after one feed. So for this reason I would want to be happy only the rats and mice can get to the blocks, so if you can afford to buy the bait box.

**Q: Put bait blocks in 2 places last night - this morning both blocks totally gone . Do they usually take the whole block away?**
A: Yes what you need to is keep putting them out until they no longer take them. Then you know you have got rid of the problem. Don’t worry if you have to put quite a few blocks out. What l do is every now and again l put a couple of blocks just to check if they are still about hope this helps

**Q: Will these hurt squirrels**
A: I put these little nuggets in a bait box and found them very effective as long as there is no other source of food for rats or mice to eat nearby, i.e. bird food.  
Entry to the box is too small for squirrels.

## Customer Reviews

### ⭐⭐⭐⭐⭐ This works and rats love it!
*by C***Z on 23 October 2025*

The only rat killer that works! Fast delivery.

### ⭐⭐⭐⭐ Good product
*by L***L on 14 October 2019*

This is the second tub I have bought of these over time. Each time I have needed to use them they have worked ok. I found it takes four to six cubes to work on what seems to be a family of three or four rats. I found them more effective than the sealed bags.

### ⭐⭐⭐⭐⭐ Rat and mouse killer
*by R***G on 29 October 2025*

It’s a good product seems to have done the job will be buying more when needed.

## Frequently Bought Together

- Rentokil PSMR42 Mouse & Rat Weatherproof Blocks - 10x20g Sachet, Black, 11.5 x 11.5 x 11.5 cm
- Rentokil FBSR02 Rat Bait Station, Clear, 26.6x17x11.3 cm
- Rentokil Rodine Rat & Mouse Killer Grain Bait - 6x25g Sachet, Black

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-24*