Semi-hydraulic two-diaphragm pump, for use in the gardening sectors. Trolley-mounted in combination with electric motors or internal combustion engines for gardening, and small sprayers for medium-pressure pesticide treatments in gardens, greenhouses, orchards or vineyards. Parts in contact with pumped liquids in anodized aluminium, and AISI 303/304. Diaphragms in BlueFlex™. Seals in NBR. Die-cast casing with oil-immersed mechanism and clear plastic tank for visual level checking. Fitted with air-hydraulic damper for smoother operation and less hammer effect in the delivery circuit. Metal fasteners with galvanised finish. Available with reduction gearboxes for internal combustion engines and direct coupling flange with special electric motors.