Didn't use for brewing but it works great!
I have two of these running my cooling loop for my geothermal HVAC. So far these have been running decently cool and run probably 20%-30% of the day. 4 stars just because they are a little noisy, but I suppose for a beer pumping it probably isn't much of a concern. I didn't have any issues with the poly/plastic threads like I have seen with some reviews, be careful and you will be fine.
Reviewed by: Fergie