Filter Cassette Holder Kit (required when sampling Back Catalog number: 800143 Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended 800772 Impinger, S-P, Micro, PVC Coated glass (2 oz./50m Price on request 400692 Battery Pack, NiMH for old style Gilibrator Price on request 801863-171-2301 BDX II Starter Kit, 230V Price on request