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 801000-1 Power Module, 120V/230V/DC, without plug (used wit Price on request 830-0001-01 Model AP-20S Gas Detection Pump Kit Price on request 910-0906-NO-R GilAir-Plus STP 5-Pump Starter Kit, No cord Price on request