Air Filter / Husqvarna 506 23 18-02Pack Size:1Husqvarna 506 23 18-03, Husqvarna 506 23 18-02, Partner 506 23 18-01, Partner 506 23 18-02, Partner 506 23 18-03Laser 43997, NHC 203-7164, Oregon 30-149, Rotary 12497Partner K950 and K1250 cut-off saws Old style (orange), Width: 4 1/4 ", Length: 6 ", Height: 2 5/8 "