Highway Towable Running Gear For Vipers! More economical... more compact... better fuel savings... less weight than a 185 CFM tow behind. Offered in either gas or diesel, the Viper suits all your pneumatic tool needs. 80 CFM at 100 PSI rotary screw air compressor Powerful enough to operate 90 lb. jack hammers and piercing tools Auto engine off and restart smart technology for increased fuel savings Auto variable throttle control based upon air demand to minimize fuel consumption and noise Optional running gear featuring independent torsion axle suspension and heavy duty construction Optional 50’ hose reel with 3/4” hose Why purchase a big, bulky, fuel intensive and expensive 185 tow-behind, when a Vanair Viper Compressor can meet your needs at a lower cost!