There is a thread on here within the past month or so where I did a gpm flow test on the camco "blue bullet"
At my house I only had a 1gpm flow drop with the filter.
This is the filter we use. Doesn't filter out alot of smaller particles, but does keep alot of junk from getting in your pipes.
I dont know how to link from the treads on here, but I'll try to bump it up if I can find it.
MillerTime- Future Sabre Handler!!