The RIDGID K-1350 (62587) Water Jetter with Pulse, 1350 psi Working Pressure, NPT Nozzles, and 25 ft. Sink Trap Hose (Cart Not Included) propels a highly flexible hose through 1 1/4″ to 4″ (32 mm to 100 mm) lines — blasting through sludge, soap and grease blockages. As you pull the hose back, it power scrubs the line, flushing debris away and restoring drain lines to their free-flowing capacity. The jetter can be either hand carried or combined with a two wheeled cart and hose reel (sold separately) for transporting. The KJ-1350 has a 1.5 HP electrical motor with a 1350 psi pressure rating and a 1.4 GPM flow rate. It is designed for residential and light commercial applications.