The Comet MC25-GR Diaphragm Pump comes with a Gear Reducer for mounting to a gas engine with a 3/4" shaft, and a Pressure Regulator with manual dump lever.
With an anodized aluminum constructed body and a large capacity oil bath crankcase that separates the chemical from the internal seals, this Comet medium pressure diaphragm pump can handle the pumping of a wide range of general use agricultural chemicals, such as herbicides, pesticides, fertilizers, de-icing materials, and other hard-to-handle fluids.
The Comet MC25-GR is widely used by professionals and agriculturalists for spraying applications that involve weed control, pest control, lawn care, mold removal, insulation, low-height spraying of trees, shrubs, and crops, and more.
If you just need to replace the pump or the gear reducer on this 'GR' version, you cannot purchase the pump or gear reducer separately. You'll need to purchase an entirely new Comet MC25-GR, since it comes equipped with a gear reducer ready to mount to a gas engine with a 3/4" shaft.