Filter Cassette Holder Kit (required when sampling Back Catalog number: 800143 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 811-9926-01 Cyclone, GK2.69 Aluminum Cyclone for 37mm Casset Price on request 360-0181-01 Manual, Gilian 10i Price on request 910-0912-EU-R GilAir-Plus Data Logging 5-Pump Starter Kit, Bluet Price on request