Stainless impeller Berkeley used. Had plans of increasing horsepower but never have as I'm told this impeller I really don't need at all and may slow my boat down being stainless and a taller pitch. I am told this impellers for high horse power boats and my aluminum is fine for my horsepower an application. If anyone is interested I may be looking to trade for other parts or I'm looking to get $550 or trade looking for a tunnel ram dart. Email me with parts you have also looking for a straight snoop with wedges or tunnel Rams cheers Merry Christmas and thank you