Impellers are part of the pump arrangement on boats and ships. Made of rubber, available in various sizes between 1 and 2.2 inches. It is used to cool the engines of a boat by pumping cold water into the engine. Take a look at our extensive collection from the brands: Mercury and Mercury quicksilver on the Tomahawk Suriname page. Order quickly via the shopping cart and have your products delivered at home in Suriname, also for Guyana