I have both plastic and brass fittings. I like the plastic because of the plastic clamp that goes over the hose. But over time they seem to stretch and let a drip come out between the hose and the male or female end. Then I just cut it back a little more and redo. The brass are great but there is a downside also. I have a couple that use a different style of clamp. One kind has the clamp that matches the plastic clamp. The other uses a radiator style screw clamp. No leaks from other. But when dragging the hoses with either of those brass ends, they seem to find everything to hang up on. And really beware if you use the to wash your vehicle or RV that they don't drag on the side, etc. when doing like the roofs. So it's a typical******shoot t me. Just my two cents worth.