Low Flow Module, Blue, GilAir-3/GilAir-5 Constant Back Catalog number: 800518 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GB37W Band, 37mm Shrink, White 100/Pack Price on request GH37SR-2 Housing, 37mm 2pc Solvent Res, 50/Box Price on request 385-0117-01 Tri-pod mounting bracket for Nephelometer (Tri-pod Price on request