TCP Global Brand Pneumatic Air Undercoating Gun with Suction Feed Cup Also for Spraying Truck Bedliner and Rust Proofing Products Excellent for Automotive Undercoatings, Chip Guards, Bed Liner and other General Purpose Coatings. Precise-machined, well-balanced, handy, light weight and sturdy in construction. Die-cast aluminum alloy gun body. Spray width and fluid adjustable. Works great with Herculiner and all other Sprayable Truck Bed Liners Suitable to handle a wide range viscosity of water or oil based material for general purpose.