Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-1601-01 Gilian 12 Pump Kit UL ATEX, Pump Only, No Charger Price on request 615-0802-01-R Gilian 800i/5000/10i/12 Five-Unit Carrying Case Price on request 910-0914-EU-R GilAir-Plus Data Logging 3-Pump Starter Kit, Bluet Price on request