These pumps have given me lots of hours of service, in my home brew setup. 8 have used these pumps for a couple months so far. I used them to circulate water in my hot liquor tank and for whirlpool in my boil kettle.The housing is stainless but the impeller is plastic. Not that this has been an issue just a clarification.It lifts the water and provides plenty of pressure in my home setup. These are not self priming but require head pressure prior to turning the pump on. No matter, they work great.Would purchase again for the price point.