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The Berthoud Cosmos 18 Pro 18L Knapsack Sprayer is a robust, professional-grade backpack sprayer designed for reliable, efficient application of herbicides, pesticides, fertilisers and other compatible liquid treatments. Ideal for landscape contractors, grounds maintenance professionals, horticultural specialists and estate gardeners, this high-performance sprayer combines durability, comfort and precision.
Featuring a large 18-litre translucent tank with graduated level markings, the Cosmos 18 Pro makes it easy to monitor liquid levels during use. Its generous 125mm filling opening and removable anti-splash filter simplify filling, while the sloping tank base helps minimise residual liquid and unnecessary chemical waste.
A powerful manual pump delivers up to 6 bar of pressure for consistent spraying performance. The integrated liquid agitator maintains an even mixture during pumping, supporting reliable application of compatible treatments. Stainless steel ball bearings within the pressure chamber contribute to dependable sealing and long-term durability.
Designed with operator comfort in mind, the Cosmos 18 Pro features adjustable, foam-padded shoulder straps, an ergonomic Berthoud Profile trigger handle and a reversible pump lever suitable for left- or right-handed operation. The lightweight 60cm aluminium lance provides excellent reach and controlled spraying, making it practical for extended use across larger areas.
Manufactured in France and backed by a 5-year manufacturer's guarantee, the Berthoud Cosmos 18 Pro is a dependable choice for demanding professional spraying applications.
18L Translucent Tank – Large-capacity reservoir with graduated markings for easy monitoring and fewer refilling interruptions.
125mm Wide Filling Opening – Allows faster, easier filling, cleaning and emptying, with an anti-splash filter to help prevent debris entering the tank.
High-Performance 6 Bar Pump – Delivers reliable manual pressure for effective and controlled liquid application.
Integrated Liquid Agitator – Keeps spray solutions evenly mixed during pumping for more consistent treatment.
60cm Aluminium Lance – Lightweight, strong construction provides practical reach and precise spray control.
Ergonomic Profile Trigger – Comfortable grip encourages a natural wrist position, helping reduce fatigue during prolonged spraying.
Reversible Pump Lever – Allows left- or right-handed operation to accommodate individual user preferences.
Stainless Steel Ball Bearings – Support reliable pressure chamber sealing and reduce wear-related sealing issues.
Sloping Tank Base – Helps minimise leftover liquid, reducing waste and making cleaning easier.
Padded Adjustable Shoulder Straps – Improve weight distribution and carrying comfort during extended working periods.
High-Strength Hose – Durable hose construction designed for regular professional use.
Integrated Lance Holder – Provides convenient, secure lance storage when transporting or storing the sprayer.
5-Year Manufacturer's Guarantee – Additional reassurance for professional users, subject to manufacturer terms.
The Berthoud Cosmos 18 Pro is suitable for a wide range of professional gardening, landscaping and grounds maintenance tasks, including:
Weed Control – Targeted application of approved herbicides across paths, borders, landscaped areas and managed grounds.
Grounds Maintenance – Routine spraying work in parks, estates, public gardens and commercial landscapes.
Horticulture – Application of compatible liquid fertilisers, fungicides and plant protection treatments.
Orchards & Vineyards – Controlled spraying around fruit trees, vines and established planting.
Nurseries & Garden Centres – Routine plant care and approved liquid treatments.
Turf & Lawn Care – Application of suitable liquid treatments to lawns, sports turf and amenity areas.
Estate & Large Garden Maintenance – Efficient treatment of extensive gardens, ornamental planting and outdoor spaces.
Always use compatible, approved spraying products and follow the product label, equipment instructions and applicable safety regulations.
