Ketta Grease Ball 055 thruster 1/4 inch BSP(F) drain jetter nozzle includes male quick coupler with protector skirtKetta Grease Ball GB8R BA8 055 thruster 1 4 inch BSP(F) drain jetter nozzle, includes stainless steel male quick coupler with protector skirt Attacks grease and muck build up like no other nozzle 8 x rear facing jets at 20 and no forward facing jet flow index size 055 extreme thrust, this nozzle will power up the pipe line buries itself into grease, fibrous roots and other soft chokes descales greasy lines for pipe diameters 80 to 150 mm (3 to 6 inch)