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 810-0903-01-R STP Pump Only (No Dock) Price on request GPG25100 Filter, Support Pads, Cellulosic, 25mm, 40.0µm, 10 Price on request 801453 O-Ring/Gasket Kit, GilAir-5 Price on request