Cassette, 37mm, 3pc, 5.0µm PVC, 50/Box Back Catalog number: GCU37500PVC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 783-0008-04 Battery Pack, Replacement BDX II, NiMH Price on request 200158 Cyclone Spring (each) Price on request GF25TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request