GilAir Plus, DL to STP Upgrade (factory only) Back Catalog number: 811-0945-01-R Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-1601-NO Gilian 12 Starter Kit, No Cord Price on request 783-0007-01 Battery Pack, Replacement for Gilian 5000, 800i & Price on request 811-1004-01 PM-2.5 Impactor Kit, Replacement for Models 810-10 Price on request