ORION KRS 3 Air filter (x2). This product replace the manufacturers item number: 4000028010
ORION KRS 5 Air filter (x2). This product replace the manufacturers item number: 4000028010
ORION KRS 7 A Air filter. This product replaces the manufacturers item number: 4000451010
ORION KRS 7 D Air filter. This product replaces the manufacturers item number: 4000451010
ORION KRS 8 Air filter (x2). This product replace the manufacturers item number: 4000451010