[Pressure Washer Duct Jetter Kit] Includes duct blast hose, laser duct blast nozzle (button nose), rotating duct blast nozzle and quick release connector from 1/4 in Pressure service is 18 Mbar / 180 Bar / 2610 PSI. Burst pressure is 7830 PSI. [Durable Sanitary Jetter Pipe] The 15-channel sewer pipe consists of 3 parts. The inner tube is made of thermoplastic polyester. The top layer is made of thermoplastic polyurethane, which can resist oil, weather, ozone and abrasion. The reinforcement layer is chemically made of 1/4 high strength polyester textile braid. [3+1 Duct Jet Nozzle] The Rotary Duct Jet Nozzle has 3 rear outlets that can be easily inserted into drain pipes and sewer pipes. The aperture is 4.5. The laser nozzle has 1 front beam and 3 rear nozzles. The front 1 jet at 0 spray angle can remove blockages, and the rear 3 nozzles at 33 spray angle can remove residue loosened by the front jet. Aperture is 4.0. [Compatible with] This product is compatible with LAVOR, K?rcher K1-K7, COMET, BAUKER, VAX, BS, LAKONI, Yili and other spray gun models. Durable and sturdy connectors can be firmly connected to the cleaner Button Nozzle rotates, 1 forward 0 jet to clear blockage in pipe, 3 rear 33 jets push forward and wash debris forward. Rotating nozzle spins 3 rear jets at 33 for blasting, jet of water into blocked pipe, cleans and rinses debris. Orifice: 4.5. To prevent water leaks, wrap the auto waterproof tape