Husqvarna O-Ring 5032630-26 Fits: Husqvarna Construction K3000 Spray K3600 Mark II K6500 Ring-II K7000 Ring K950 Ring K960 Ring K970 Ring K970 Ring II K970 Ring-III Husqvarna PW 345C PW 350 (2018-2023) PW 360 (2018-2023)