I'm using this as an aftercooler for my 60gal 155psi air compressor. I will say that in terms of significantly dropping the air temperature, this is doing an amazing job- the air compressor pump is reaching about 300F, but the copper tubing exiting the cooler is only about 100F. I've mounted the cooler on the cage protecting the compressor belt and it is getting some airflow, but I'm not using any electric fans or anything like that to really cool things.

Time will tell if it holds up, but so far it's working better then I had hoped for!

Rating: [5 of 5 Stars!]