Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0101-02 GilAir-5 Basic [ATEX], Starter Kit, 230V, Euro Plu Price on request 910-0302-02 LFS-113 D Pump, 5-Pack, 230V, Euro Plug Price on request SC-2 Tedlar Bag (1.5L) Price on request