Filter Cassette Holder Kit (required when sampling Back Catalog number: 800143 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 200241 Impinger, Sorbent Trap, Midget, glass, with screw Price on request 811-9927-04 Cyclone, BGI4L Gasket Price on request 801863-171 BDX II Pump, No Charger Price on request