Filter, Support Pads, Cellulosic, 37mm, 40.0µm, 10 Back Catalog number: GPG37100 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1004-02 PM-10 Impactor Kit, Replacement for Models 810-100 Price on request 800511 Carrying Case ,Hard-Side (17.5" x 13" x 7"), BDX-I Price on request 783-0007-01 Battery Pack, Replacement for Gilian 5000, 800i & Price on request