Cyclone, GK 2.69 37mm O-Ring Kit Back Catalog number: 811-9927-05 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1604-NO Gilian 12 Power Module, No Cord Price on request 6075-0428-R Screwdriver - Stainless Steel, Philips / Pan-Head Price on request 800470 Anti-Tamper Plate, GilAir-3/GilAir-5/BDX-II Price on request