GENUINE RETURN LINE FITS HUSQVARNA 435 440 445 450 + MORE 577535101 E34715025791 while using the Vstack Adapter while using the Vstack Adapter for the particular saw Blades 20" WITH Tip Guard RETURN HOSE CS2250 S II Jonsered RETURN HOSE CS2250 S II Jonsered RETURN HOSE GZ381 Zenoah RETURN HOSE GZ500 RedMax RETURN HOSE GZ500 RedMax Description RETURN HOSE 445 Husqvarna RETURN HOSE 445 II Husqvarna RETURN HOSE 445 II Husqvarna RETURN HOSE 445 e series Husqvarna RETURN HOSE 445 e series Husqvarna RETURN HOSE 445 e series II Husqvarna RETURN HOSE 445 e series II Husqvarna RETURN HOSE 450 Husqvarna RETURN HOSE 450 Husqvarna RETURN HOSE 450 II Husqvarna Description