Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0903-EU-R GilAir-Plus STP Single Starter Kit, Euro cord Price on request 800256 Single Variable Flow Kit, 7-10 x 150mm Price on request 800331 Safety Tape-10 Feet Price on request