This is a 6 7/8 stainless outboard jet impeller from SEI (not the flimsy, folding Amazon/ebay impellers). These are very durable impellers made from 17-4PH stainless steel. We’ve done extensive testing with these impellers and have found them to be very durable and fast. Replaces part number 106.23, 8M0230713 and 47-855708T60. This is a common impeller used in many 60-70hp large pump applications. If you are unsure which impeller is correct for your application please email, call, text or send us a message thru social media and we'd be happy to confirm the correct part number for you! 573-529-3849