AirPro PUR-14X50-B 1/4-Inch x 50 Foot Polyurethane 250 PSI Air Hose
This is possibly the best air hose we've seen. Light polyurethane construction takes the bulk out of it, meaning easier transport, but it's super tough and will not kink or crush, no matter how you abuse it. Rubber hoses become difficult to maneuver when the temperature drops, but this one's light and flexible even in temperatures below zero. You can't see inside rubber hoses, but this one's translucent enough to let you see if you've got contaminants in the line. If you're running a pneumatic tool, you ought to be running your air through this.--Kris Jensen-Van Heste