I'm planning on mounting a small filter system to the wall where my welder and plasma cutter stay. Hypertherm recommends a 3 stage filter system consisting of a water and particle filter, oil filter, and oil vapor filter. Is there a good place in town to find these filters? Praxair sold me a set of small water collectors, but thats all they had. I'd like to find some filters that I can attatch to the wall, and then run a small hose to the plasma. That way theres no stress on the back inlet of the plasma from a line of filters hanging off it.