AES Industries 627 Air Undercoat Applicator Gun for Spraying Undercoat, Bed Liner, Sound Deadener and Insulation LARGE 5/16" ID applicator nozzle sprays all brands and viscosities of undercoat, chip guard, bed liner, sound deadener, insulation and much more! APPLIES undercoat to vehicles and trailers which helps in preventing rock chips and rust. Also used to efficiently apply spray on bed liners, spray on insulation and spray on sound deadeners. QUICK AND EASY to fully disassemble for routine cleaning. ACCEPTS bottles from AES Industries, SEM, 3M Schutz and other various bottles with a 1-3/4" outside diameter thread. (Does not work with UPOL brand) SPECIFICATIONS: 1/4" NPT Air Inlet, Operating Pressure 50 - 70 PSI, 7" Long 1/4" ID Fluid Pick-Up Tube, Air Consumption: 11 CFM.