I tried several. Two came with the boat when I bought it. They were both black and in a Universal package. I also ordered the blue one from Defender, hoping it might work. I think that is the run dry Globe brand. No luck with that one either. The new Oberdorfer pump came with a black impeller. That is the one that is installed now and working. I assume it is a Universal, but I suppose there may be other brands on the market that are also black.