The Cooper Pegler CP15 is a 15-litre knapsack sprayer built around a unique diaphragm pump system that's resistant to dirty water and requires no lubrication. Brass pump components avoid premature wear and add to its long working life. Comes complete with a yellow hollow cone nozzle and green anvil nozzle, covering both fine droplet and wide pattern spraying. A pressure control valve with fixed settings makes it straightforward to switch between herbicide and fungicide/insecticide applications. Best For Spraying herbicides & weed killers Applying fungicides & insecticides Smaller jobs & lighter carrying Horticultural & agricultural use Why the CP15 ✓ Diaphragm pump resistant to dirty water The friction-free diaphragm avoids premature pump wear even when working with less than clean water - a common issue with cheaper piston pumps. No lubrication required. ✓ Brass components for excellent durability Key pump components are made from brass rather than cheaper plastics - resisting wear and corrosion over years of regular use. ✓ Two nozzles included for different applications The yellow hollow cone nozzle gives a fine, light droplet pattern suited to insecticides and fungicides. The green anvil nozzle produces a wider, heavier droplet pattern that reduces drift - better suited to herbicides. ✓ Left or right-hand operation The pump lever is adjustable and reinforced for use on either side - set it up to suit your preferred hand. CP15 or CP3? CP15 Compact CP3 Larger Capacity 15L 20L Pump type Diaphragm Diaphragm Max pressure 3 bar 3 bar Brass components ✓ ✓ Weight (empty) 4.6kg 5.1kg Nozzles included Cone + anvil Cone + anvil Best for Lighter jobs, less weight to carry Larger jobs, more capacity per fill What's in the Box Cooper Pegler CP15 sprayer - 15L tank Yellow hollow cone nozzle - fine droplets for insecticides & fungicides Green anvil nozzle - wide pattern, drift-reducing for herbicides Adjustable shoulder straps Common Questions Which nozzle should I use for weed killer? The green anvil nozzle is recommended for herbicides - it produces a wider, heavier droplet pattern that reduces drift and minimises the risk of damage to nearby plants. Can I switch the pump lever to the other side? Yes - the lever is adjustable and reinforced for left or right-hand operation. Should I get the CP15 or the CP3? Both share the same pump technology and nozzle set. The CP3 has a larger 20L tank for bigger jobs, while the CP15 is lighter to carry at 4.6kg empty - a good choice if you're doing smaller areas or prefer less weight on your back. Specifications: Tank capacity 15 litres (18L actual) Tank material Polypropylene Pump type Diaphragm, brass components Max working pressure 3 bar Lance length 500mm Delivery hose length 1280mm Weight (empty) 4.6 kg