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 783-0009-02-R Battery Pack, GilAir-5. UL, ATEX, NiMH Price on request 380-0035-01 Nephelometer Pump Assy, Replacement Price on request 910-0904-EU-R GilAir-Plus Basic 5-Pump Starter Kit, Euro cord Price on request