Cassette, 37mm 2pc 5.0µm PVC, 50/Box Back Catalog number: GCU37500PVC-2 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF37TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request 202046-72 Hose for 72" Sampling Mast, Aircon-2 Price on request 783-0012-01-R Battery Pack NiMH Rechargeable Price on request