Comet MC8 Diaphragm Pump

MC8 twin diaphragm pump alone or with gear reduction and regulator.

Comet MC8 Low Pressure Diaphragm Pump.

Comet MC8 Low Pressure Diaphragm Pump.

  • Comet MC8 Pump for Use with Electric Motor
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    • Buy 6 for USD $610.99 each and save 10%
  • MC Repairkit
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    • Buy 6 for USD $200.88 each and save 10%


The Comet MC8 is a low pressure, twin diaphragm pump with a plastic body. This is a terrific pump for small area agricultural spraying, as well as gardening, pest control, lawn care, mold removal and insulation.

This pump can handle spraying a range of agricultural chemicals, including herbicides, pesticides, liquid fertilizers, de-icing materials, and other hard-to-handle fluids.

MC8-E: Plastic two diaphragm pump for use with standard NEMA-C face electric motors with 5/8" solid keyed shaft. Comes with pressure regulator.

MC8-GR: Plastic two diaphragm pump with gear reduction for gas engines with 3/4" shafts. Comes with pressure regulator.

  • Max. Flow: 1.8 gpm
  • Max. Pressure: 220 psi
  • Max. Rated Speed: 1450 rpm
  • Max. Fluid Temperature: 104° F (40° C)
  • Min. Power: 0.3 hp
  • Port Sizes: 5/8" inlet, 3/8" outlet, 1/2" bypass.
  • Two semi-hydraulic diaphragms.
  • Low pressure pump.
  • Polypropylene materials.
  • Pump Shaft Rotation: CW and CCW
  • Adapts to PTO, gas engine, hydraulic motors, or belt drives.
  • Self-priming.
  • Can run dry.
  • Large capacity oil bath crank case.
  • Weight (MC8-E): 3.5 lb
  • Weight (MC8-GR): 4 lb

Please check the files under Related Information if you want more info on this MC8 Diaphragm Pump by Comet.

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