Filter Housing, Rear GilAir-3/GilAir/5 Back Catalog number: 202816-1 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800222 Tool Kit, LFS-113 Price on request GFG858X10 Filter, Glass Fiber, Binderless, 1.1µm, 8" x 10", Price on request 385-0113-01 Filter Cap, Replacement for Nephelometer Price on request