Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 911-0301-EU-R Single Unit Charger w/ Power Adapter, USB, LFS-11 Price on request 910-0105-02 GilAir-5 Clock [ATEX], 5-Pack (With Universal 5-Un Price on request 811-0505-01-R Single Unit Replacement Charger only, USB Gilibrat Price on request