Pump Filter Kit (3 Filters, 3large o-rings, 3 sma Back Catalog number: 800556 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9929-01 Inhalable Dust Sampler, GSP-3.5 Conical Style (100 Price on request 811-1004-04 PM-4.0 Impactor Kit, Replacement for Models 810-10 Price on request 811-9961-NO Gilian 800i/5000/10i Power Module, No Cord Price on request