Air Boss, Blue, GilAir-3/GilAir-5 Back Catalog number: 201169 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GFPC4537 Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Price on request SC-1 Tedlar Bag (0.5L) Price on request 385-0115-01 Nephelometer O-Ring, Replacement Price on request