Cyclone, BGI4L Gasket Back Catalog number: 811-9927-04 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0901-01-R Basic Pump Only (No Dock) Price on request 298-0031-01-R Single Unit Replacement Power Adapter only, USB Price on request 811-9929-01 Inhalable Dust Sampler, GSP-3.5 Conical Style (100 Price on request