Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800485-171 GilAir-3 R Pump, No Charger Price on request 811-0502-01 Gilibrator Cable Adapter Kit 15 to 9 pin (Replaces Price on request 811-0945-02-R GilAir Plus Basic or DL to STP BlueTooth and Motio Price on request