Click to enlargeOberdorfer Macerator Pump w/Vacuum 
Switch 25 GPM # 406MK-7N26

Oberdorfer, macerator, single phase, close-coupled, bronze, self priming, rubber impeller pump with vacuum switch. Designed specifically for punping sewage from boats to holding tanks or sewer connections. Ships 2-3 business days



Specifiactions

  • Construction: Casing, cutter and bracket are bronze. Buna N rubber impeller.
  • Impeller: Buna N (Nitrile). Buna N impellers can handle oil contaminated water as opposed to neoprene impellers who can't
  • Motor: 1 HP 1725 RPM 115/230/1/60 connected for 115 volts
  • Suction Connection: 1-1/2 Male NPT pipe thread or 2" ID hose
  • Discharge Connection: 1" female NPT pipe thread or 1-1/2 ID hose.
  • Operation: A bronze cutter grinds down waste to small particle size which makes it possible to eject them through the discharge nozzle of the pump.
  • Mounting: Dockside or onboard
  • Liquid temperature range: 40 to 140 degrees Fahrenheit
  • Suction Lift: 15 feet are possible when pump is fully primed.
  • Approximate dimensions: 18" long, 7" wide, 10" high
  • Approximate Weight: 45 lbs




Pump Capacity Table
406MK-7N26 Discharge Pressure PSI
0 10 20 30 43
Gallons Per Minute (GPM)
25 22 16 8 0



Oberdorfer Macerator Pump w/ Vacuum Switch 25 GPM 406MK-7 N26 (D)
OBE-PMP-406MK-7N26-KList: $1,376.00Discounted Price $903.00
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