Get In Touch

Fill in your details below and click 'Submit'

Customer Login


Total: £0.00

View Cart

Free Next Day Delivery

For orders over £50 placed before 4.00pm

Pest Expert Formula B Rat Killer Poison 20kg (2 x 10kg) - PROFESSIONAL USE ONLY

£69.95 incl. VAT
£58.29 excl. VAT

Select Quantity


Pest Expert Formula 'B' Rat Killer is a highly effective professional rat poison delivering rapid results.

  • Contains maximum strength Bromadialone
  • Made from top quality whole-wheat grain
  • No wax content so highly palatable to rats
  • Ideal for commercial and agricultural rodent control
Product Information
Pest Expert Formula 'B' Rat Killer contains maximum strength Bromadiolone - the strongest and most effective rodenticide available - is wax-free and is made from the finest wholegrain wheat, making it highly palatable to rats and ensuring outstanding results.

This 20kg, supplied as 2 x 10kg, contains the same rat bait as our smaller pack sizes; however, HSE legislation states that this quantity is for professional use only. This is the largest pack size of rat poison available on the market and offers outstanding value for money at just £2.45 per kg.

Formula 'B' 20kg is ideal for fast and effective rodent control in commercial settings including offices, food premises, warehouses, and factories etc, as well as in agricultural contexts such as smallholdings, farms and riding stables.

Directions for use
When using any type of rodenticide, care should always be taken to ensure that it is not accessible to children or non-target species such as pets or other forms of wildlife. Our heavy-duty lockable rat bait boxes should be used to securely house the poison when baiting outdoors or in sensitive areas.

Open each bait station and fill the central chamber with bait. Close/lock the box and position at the edge of a wall/fence, along a rat run, or wherever else rat activity has been noticed. Check each bait station every 5-7 days and replenish poison as necessary until no more rat bait is taken. Formula 'B' can also be poured loose into bait trays and placed under kitchen sinks, behind kickboards, in lofts etc or anywhere where there is no risk of contact from non-target species.

For the best value for money, please see our Rat Killer Kits, which contain both Formula 'B' and rat bait stations and are supplied with a professional advice sheet to help you achieve and maintain successful rodent control.

THIS PRODUCT IS FOR PROFESSIONAL USE ONLY. In order for us to fulfill an order for this product, you must provide us with a copy of your CRRU certificate or confirmation of your membership of a CRRU Aligned Farm Assurance Scheme by emailing us at By law, we are unable to dispatch orders until we are in receipt of the necessary certification.  For more information, please see the Official CRRU UK code of best practice.

Most popular products

Customer Reviews

Write an online review and share your thoughts with other shoppers!

Reviewer: Derek Milburn from Stanley   5 Stars

Rats to you

I was very hesitant at first buying rat poison from the web as I have bought cheep poison before without success I am so pleased that I have no hesitation in recommending Pest Expert to anyone that is having problems with any pest at all . Derek

Reviewer: William Alan Mccormick from Mold   5 Stars

Fast delivery and excellent update on order

excellent service

Reviewer: Mr Jason Emmins from Whitland   5 Stars

Proper good service

Brilliant company to deal with! The right product delivered quickly and correctly and they even chucked in some free bait trays!

Reviewer: Richard Rickard from Market Harborough   5 Stars

rat poison order

The goods were as described and delivered on time in anticipated time slot.

Reviewer: K Martin from Norwich   5 Stars

rodent control

Delivered next day as promised. I am a repeat customer, says it all