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 TE-23 Teflon Bag, On-Off Valve (4.7L) Price on request GCS25080 Cassette, 25mm, Classic Style, PCM, 0.8µm, MCE, No Price on request 910-1605-NO Gilian 12, 5-Pack Kit, No Cord Price on request