cheapest vlave

^clean them.

I have the 3/8 smc's from Suicide Doors. Haven't got around to bagging my truck yet but lots of ppl give them the thumbs up. I heard sometimes you might have to run like a foot of line off of the dump valve for some pressure reasons but i'm not really sure about that. If anyone knows what i'm talking about help me out. But as far as reliability parker or smc would be my choice.

you dont need the line.