Multi-Flow Module, Blue, GilAir-3/GilAir-5 (1 to 7 Back Catalog number: 800519 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 380-0035-01 Nephelometer Pump Assy, Replacement Price on request 850082 PC Cable, Flow Monitoring Software Kit (cable only Price on request 910-0801-02 Gilian 5000 5-Pack, UL ATEX 120V/240V , Euro Cord Price on request