Outboard Motor & Sterndrive Flushing Bags

  • Flush your outboard engine fast, easy and efficiently with a Flushing Bag! 
  • You can flush your motor any place you can hang it, or on the boat or on the water.
  • Leave the prop on. 
  • The Most Efficient Way To Flush,
  • Quiets Engine Exhaust Noise, can't fall off, stores easily, saves water.
  • Provides necessary exhaust backpressure.
  • Stability base (BB2, SDB3 and DPB3) allows those bags to be freestanding, when empty or full.  This allows users to flush more than one engine without draining and refilling the bag.Especially useful for repair facilities and owners of boats with twin engines.
  • It cleans up easily, folds flat, and has a lifetime warranty!

    Model SB2 for small outboards 
2-cycle to 20 Hp, 4-cycle to 16 Hp

  •   Run in gear anywhere you can hang your motor.
  •   Leave the prop on while you flush!
  •  Or flush on the boat in the water!
  •  Can also be used as a bait tank and an 
     emergency sea-anchor
  •  So small it stores in a drawer!
  •  Measures 14 diameter x 22H inches.
  •   14.5 gallon capacity*
  •   Blue 
Additional Pictures of SB2

Outboard flushing bag for small outboard motors


plus shipping
from manufacturer

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Price with Shipping

Model BB2 for large outboards 
2-cycle to 100 Hp, 4-cycle to 80 Hp

  • Tough and practical freestanding big outboard flusher/test tank
  • Free-standing for use on trailered boats
  • Stability Base Included
  • Quiet Running - just as it is when in the ocean!
  • Can't fall off like other flushers
  • Overflow goes under the boat, not on your  feet!
  • 28.5 Gallon Capacity*
  • Meaures 18 diameter x 25 high 
  • Blue

Outboard Flushing Bag BB2 for large outboard motors

plus shipping
from manufacturer

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 Model SDB2 Large Outboard & Sterndrive Flushing Bag
 for all outboard motors and most sterndrives.
  • Stability Base Included
  • 40 GallonCapacity*
  • For engines up to 200 hp
  • Measures 28L x 15W x 21H inches.
  • Red

Outboard Flushing Bag SDB2

ships from

Model DPB-3 for Largest Dual-Prop Sternidrives 
Can also be used as Test Tanks
  • Stability Base Included
  • For engines up to 300 hp (without a fin)
  • Measures 32L x 15W x 27H inches.
  • 59 gallon capacity*
  • Red

Outboard flushing bag model DPB3
ships from

* Tank Capacity is maximum volume of bag with no outboard or sterndrive unit in it. Calculate approx. volume when in use. H* = height of bag.  Deduct 4" for water level at overflow grommets. 

We also make custom bags to your specifications. Please call or email for a quote

Every Outboard Motor and Sterndrive Manufacturer  
Recommends Fresh Water Flushing After Every Use in Saltwater

There are two primary styles of flushing devices on the market today; the clamp-on device and the flushing bag.
The use of inexpensive clamp-on devices for freshwater flushing allows a considerable amount of water to be wasted by leakage at the point of injection. Up to 50% of the fresh water may not enter the engine's cooling system, rather, it is sprayed outward from the suction cup-like attachment. It is, impossible to ascertain if a sufficient amount of water is being introduced into the engine's cooling system - It may well be that flushing in this manner is not fully efficient. It is also quite possible that this type of device may slip off, stopping the flow-of water into the engine. Additionally, when flushing an engine using a clamp-on device, pollutants and noise are exhausted directly into the atmosphere through the exhaust ports continuously while the engine is running.
The use of  OUR outboard  flushing bag submerges the entire lower unit in fresh water. This ensures proper engine back-pressure and that there is little water wasted. The flow of fresh water into the bag can be controlled so as to eliminate excessive water use.
The engine's own water pump is supplying the flow of water through the engine and cooling system. Being fully submerged, it cannot suck air or leave any passage or component unflushed, Water can he pumped from the bag into a sump, sewer, or retained for use again.
The engine's exhaust is totally directed into the bag where oil and fuel residue will adhere to the inside surfaces of the bag. It may then be wiped out and properly disposed of at the completion of the flushing operation.
Flushing devices other than the flushing bag are contributors to noise pollution as well. When normally operating, the exhaust of an outboard motor or sterndrive is submerged. Noise is muffled by the water surrounding the unit. With clamp-on devices, the exhaust is open, unmuffled and loud. But as in actual use, the flushing bag puts the exhaust fully underwater, muffling the sound. The motor is flushed efficiently, cleanly, quietly and with minimum effect on the environment.

Thousands in Use!

ALL models have a Lifetime Guarantee!!

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