Model ES-J-3055A General's Jet Sets are ideal for clearing soft stoppages such as grease, sludge, sand and ice from the drain. Use 3/8" ID hose for clean outs, 4" through 8" floor drains and septic lines at distances up to 90 meters. With 1/4" ID hose, you can clear 2" through 4" lines up to 60 meters away. And 1/8" hose has the flexibility to get through 1-1/2"~2" lines and bends up to 22 meters down the line. ES-J-3055A is powered by a 16HP motor with electric start. It generates 3000 psi at 5.5 gallons per minute. The vibra-pulse system lets you work the hose around tight bends and small lines, while keeping the flow rate the same whether vibra-pulse is on or off. All nozzles are made of plated hardened steel to last longer.