Item Code: 755600. It contains all the parts required to service your trigger.
eBay
Cooper Pegler Sprayer Parts - Plastic Trigger 755826. It has an M18 X 1.5 mm threaded end to connect to all Cooper Pegler Grp lances and Cooper Pegler Grp booms. This trigger fits all Cooper Pegler sprayers.
eBay
This trigger valve is suitable for the Classic and 2000 series CP3 and CP15 garden sprayers with a composite lance. This trigger valve is spring loaded and has a quick action lock for on and off.
eBay
Part Number: 755826. COOPER PEGLER COMPLETE PLASTIC TRIGGER. Spring loaded active trigger assembly. Trigger can be locked open. Incorporates an internal filter which can be removed and cleaned periodically.
eBay