I have read (and decided to) buy about 10 feet of liquid hose and trim down to whatever length works for me. My question is, does the air hose length matter?
Should the liquid and air be the same length?
Buy the length of air line that will work for you. As in, depending on where you want the bottle (Inside or outside). As far as I know, it matters not the length. Just buy enough to make sure it works for your setup!