Filter inside low flow modules 800518 & 800519 Back Catalog number: 201119 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 783-0012-01-R Battery Pack NiMH Rechargeable Price on request 800142 Clip Assembly, Replacement for Filter Cassette Kit Price on request 800508-171-2305 GilAir-3 RC Pump, 5-Pack with Universal 5-Unit Cha Price on request