Sewer jetting nozzle set include one Turbo jetting nozzle and three hardened stainless steel jetting nozzle, idea for your general sewer jetting and pipe cleaning, they are effective to break through pliable obstructions such as grease, sand, pebbles mineral deposits, and general waste build up. JN-TB01 Turbo jetting nozzle, can penetrate obstructions with its pointed head cone driven by one rear jetting for maximum thrust and cut. JN-SS16-1 Bullet head with 1 front and 6 rear at 15-degree, it is used to penetrate blockages and make an initial opening in a blocked line. Max working pressure 4000psi. JN-SS16-2 Short and round head with 1 front and 6 rear at 30-degree, ldeal for general drain cleaning for making tight turns in traps and elbows. Max working pressure 4000psi. JN-SS13 Bullet head with 1 front and 3 reat at 30-degree, ldeal for general drain purpose, 30-degreerear jets to clean sidewalls efficiently. Max working pressure 4000psi.