ALLETT RC51D Dethatcher Cartridge (Kensington 20)
Custom-made for the Allett Kensington 20, this 20-inch cartridge tackles heavy thatch, moss, and debris with ease. Allett’s most powerful thatch-removing cassette, its deep-penetrating tines improve airflow and nutrient uptake, helping restore lawn health and encourage stronger, thicker grass growth.
RRP: £389
Our Price: £369.00 (inc VAT)
Out of stock, available to pre-order
About the ALLETT RC51D Dethatcher Cartridge (Kensington 20)
The Most Effective Way to Revive a Lawn: Allett RC51V Dethatcher Cartridge (Kensington 20)
A tired lawn often points to problems beneath the surface rather than on top. Layers of thatch and moss starve grass roots of light, water and nutrients, restricting growth and dulling your lawn’s appearance over time. The Allett RC51V Dethatcher Cartridge is designed to tackle these issues directly, giving badly affected turf the chance to recover and thrive. Made for the Allett Kensington 20 and the company’s most intensive thatch-removal cassette, this 20-inch (51cm) cartridge delivers a deep and thorough approach to lawn renovation.
Engineered for Seamless Compatibility
This cartridge has been created specifically for the Kensington 20 Cylinder Mower, ensuring a precise and reliable fit. Thanks to Allett’s quick-change design, you can remove the standard cutting cylinder and install the dethatcher in just a few minutes.
As part of the updated RC cartridge system, this cassette replaces Allett’s earlier QC range. It includes instructions for adapting the bracket using a rubber stopper, allowing it to work with older compatible machines.
Powerful Action to Remove Challenging Thatch
When lawns have been neglected or become heavily compacted, a robust solution is needed. This dethatcher uses thicker, widely spaced tines to penetrate the surface to a depth of up to -6mm. This deeper reach allows it to break through stubborn layers of thatch and lift out accumulated material that lighter tools simply cannot handle.
The result is a more open lawn surface, which can breathe more easily, giving your grass the space it needs to recover and grow effectively.
Clears Debris for Stronger Growth
Working across the lawn, the dethatcher cartridge combs through the grass blades to remove thatch, moss, and unwanted plant matter. This clears away debris that would otherwise compete with the grass for nutrients and moisture. By reducing competition, the grass is able to grow more evenly and develop greater resilience.
Using Allett’s dethatcher cartridge removes significantly more material than the company’s verticut option, making it the most effective Allett cassette for tackling heavy thatch build-up.
Encourages Healthier Soil Conditions
While a small amount of thatch is not really an issue, excessive levels act as a barrier between the soil and essential resources. By removing it, the dethatcher cartridge allows water, air, and nutrients to move freely into the root zone. This improved access supports stronger root development and helps reduce the risk of disease.
Over time, you will notice that your lawn becomes not only greener, but also more resilient to stress and wear.
Best Used as Part of Seasonal Care
Due to its aggressive action, this Allett cartridge is best used once a year rather than on a regular basis. Late spring or early autumn provide the ideal conditions, as moisture levels support recovery after treatment. Using it at these times helps reset the lawn and prepares it for ongoing maintenance.
Incorporating dethatching into your seasonal routine helps ensure your lawn remains in optimal condition year after year.
Proven Allett Craftsmanship
Allett has spent over six decades refining its approach to cylinder mowing and lawn care equipment. Designed and manufactured in Staffordshire, their machines are the go-to choice for demanding homeowners and professionals. This dethatcher cartridge reflects the quality the company is famous for, offering a durable build and outstanding levels of performance.
Revive Your Lawn with Confidence
When your lawn is struggling under the weight of heavy thatch or moss, the Allett RC51V Dethatcher Cartridge comes to the rescue. Simple to install and built for demanding work, it transforms a Kensington 20 mower into a powerful lawn renovation tool. Order your RC51V Dethatcher Cartridge today to give your lawn the fresh start it deserves.
FAQs
What is the ideal time of year to use this dethatcher cassette?
The best results are achieved in late spring or early autumn, when optimised soil moisture levels help the lawn recover after treatment.
Can this Allett cartridge be used regularly throughout the season?
It is designed for occasional, intensive use rather than frequent maintenance. For ongoing care, a less aggressive cartridge would be more suitable.





Reviews
There are no reviews yet.