Cyclone, GK 2.69 25mm O-Ring Kit Back Catalog number: 811-9927-06 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GFPC447 Filter, 47mm, 0.4µm, Polycarbonate, Plain White, 100/Pack Price on request GF37500PVC Filter, PVC, 5.0µm, 37mm, 100/Pack Price on request GH37C Housing, 37mm, Conductive 3pc, 50/Box Price on request