Filter Cassette Holder Kit (required when sampling Back Catalog number: 800143 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 811-9931-01 Cyclone, FSP-10 Large Capacity Cyclone (10LPM Res Price on request 800844-2-230 Gilibrator-2 Standard Flow Diagnostic Kit, 230V, E Price on request 811-9927-01 Cyclone, BGI4L Replacement Grit Pot Price on request