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VHT12 Vacuum Holding Tank

Big VacuFlush Power for Smaller Boats

For performance boats and other trailerable boats with space too limited for typical marine toilet systems, VacuFlush VHT vacuum holding tank systems make it easy to install a complete VacuFlush toilet system on boats from 19 ft. (5.8 m) in length.

VHT models integrate a vacuum pump, vacuum reservoir, and waste holding tank into one easy-to-install unit.

Compact in size, VHT units deliver all the benefits of larger VacuFlush systems, providing a waste tank with as much flush capacity as holding tanks that are sized for much larger boats.


  • Compact size for small boats 19-26 ft. (5.8-8.0 m) in length.
  • 6.5-gal. (25-l) capacity.
  • Corrosion-proof, leak-proof, and odor-proof.
  • High-density polyethylene construction.
  • 3/4- and full-tank level sensors.
  • Auto "full tank" shutdown to toilet system prevents tank overfill.
  • Easy to plumb and install — no solvent-bond connection required.
  • Optional discharge pump models available.
Technical Data 
Holding Tank Capacity (gal/l) 6.5/25.0
Avg. Power Draw 3 amps @ 12V DC
Circuit breaker/fuse 5 amps @ 24V DC
Inlet Plumbing ID 1.5 in./38 mm sanitation hose or PVC pipe
Inlet Plumbing Max. Horizontal Run 20 ft./6.1 m max. from toilet discharge
Inlet Plumbing Max. Vertical Run 3 ft. /0.9 m max. from toilet discharge
Discharge Plumbing ID 1.5 in./38 mm sanitation hose or PVC pipe
Discharge Plumbing Max. Horizontal Run 30 ft./9.1 m max. to discharge fitting
Discharge Plumbing Max. Vertical Run 6 ft./1.8 m max. to discharge fitting
Vent Hose ID 0.625 in./16 mm sanitation hose

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