Sanding body fillers can be tiring and if you’re leveling a flat panel you want to keep the surface as straight as possible. This Straight Line Pneumatic Sander Double piston type provides up to 2100 one inch strokes per minute for professional results almost effortlessly. Requires 5 cfm at 90 psi. Air inlet 1/4″ NPT. Use with commonly available 17 1/2″ x 2 3/4″ abrasive paper. 90 day Manufacturer’s warranty. Imported.