Outboard Motor Flushing bag Model SB2 for small outboard engines. Made in the USA. Flush your outboard engine fast, easy and efficiently Run in gear anywhere you can hang your motor. Can't fall off and saves water! Leave the prop on while you flush. Stores easily. Quiets Engine Exhaust Noise Use as bait tank too! For small outboards 2-cycle to 20 Hp, 4-cycle to 16 Hp