2/3 piston semi-hydraulic diaphragm pumps constructed of die-cast aluminium. All wetted parts are plastic coated (25 VF) anodised (PA) or polypropylene (poly). Compact construction. Ideal for many applications: spraying and pest control in gardens, greenhouses, lawns, parks, pastures, weed control, liquid transfer, etc. Suitable for trailed or mounted sprayers, tractors and motor pump unit applications.