Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 400165 Impinger, Standard Midget (25ml) Price on request 811-0921-01-R GilAir Plus impinger Bracket for single impinger h Price on request 910-0905-EU-R GilAir-Plus Data Logging 5-Pump Starter Kit, Euro Price on request