Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF47450 Filter, MCE, 0.45µm, 47mm, 100/Pack Price on request 800510-171-2301 GilAir-3 RP Pump, Starter Kit, 230V Euro Style Plu Price on request 910-0907-EU-R GilAir-Plus Basic 3-Pump Starter Kit, Euro cord Price on request