Key notes: The CP3 'Evolution' Knapsack is the big brother to the CP15 Evolution Full padded harness and belt for ultra comfort and long-term wearability The tried & tested diaphragm pump system copes better with water impurities than piston pumps Top mounted carrying handles for easy lifting It's built-in pressure relief valve guarantees precision for the type of application desired Cooper Pegler Spray Shield for Evolution knapsacks also available; limits overspray and drift in tight areas, such as borders and garden beds The CP3 Evolution has a wide range of benefits to aid spraying: UV stabilised Polypropylene tank body for a durable yet lightweight sprayer Full padded harness Few moving parts of which none are exposed to friction, ensuring resistance to dirt in the spray liquid and a very low maintenance level. Two top mounted carrying handles Low mesh strainer to filter out dirt. Supplementary filter in trigger Unique diaphragm pump very resistant towards water impurities Pressure control valve with fixed settings for spraying herbicides/insecticides and fungicides Max working bar pressure, 3 bar (45 psi) Hand operated trigger (with trigger lock) Nozzle on multi-nozzle adaptor 50cm long high resistance GRP (Glass fibre Reinforced Plastic) lance 136cm long reinforced hose for greater pressure resistance Adjustable re-enforced lever for left / right hand operation 140mm wide filler opening to prevent overflow Fully serviceable as service kits are available Adjustable waist strap and reinforced back (significant reduction in discomfort) Materials do not absorb pesticide Yellow and green nozzles included with the CP3 Evolution: Yellow Hollow cone nozzle: used for plant protection, the nozzle produces a conical pattern of fine, light droplets, specifically for use with insecticides and fungicides. Use sprayer at maximum pressure for best results. Green Anvil nozzle: used for weedkilling, this nozzle produces a wide pattern of heavy droplets thus avoiding chemical drift and consequent damage to adjacent plants/lawn etc. Use sprayer at low pressure for best results. For bed and interborder weeding use a weedkiller shield. Assembly instructions: Watch our handy video below to see how to put your Cooper Pegler CP3 Evolution Knapsack together.