Quote Originally Posted by nikhsub1 View Post
Since Bill Adams did the testing on the PA's, you can be certain the numbers are solid.
I agree, I just don't know what barbs were used for the testing.

Usually it doesn't matter much with a G1/4 barb, but considering the PA can accept G3/8 barbs and these pressure drops are small, it's important to test.

I noticed a difference in my old MCR320 pressure drop testing just switching from 3/8" NPT with 1/2" hosebarbs to 5/8" hosebarbs, so I'm sure the same is possible here.

It's just always a good idea to compare on the same test bed if possible.