Outboard Motor Flushing Bag Model SDB2 for Large Outboard Engines up to 200 HP & Stern drives. Made in the USA. Flush your outboard engine fast, easy and efficiently Run in gear and roll it up and take it with you. Can't fall off and saves water! Quiets Engine Exhaust Noise; stores easily. For Outboard engines up to 200 Hp and sterndrives Stability Base Included. Made in the USA.