Cyclone, BGI4L O-Ring Kit & Gasket Kit Back Catalog number: 811-9927-02 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 810-0301-02 LFS-113 D Pump, No Charger Price on request 800508-171 GilAir-3 RC Pump, No Charger Price on request