Filter Housing, Rear GilAir-3/GilAir/5 Back Catalog number: 202816-1 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 200158 Cyclone Spring (each) Price on request 800844-4-230 Gilibrator-2 Deluxe Diagnostic Kit, with Printer 2 Price on request 783-0012-01-R Battery Pack NiMH Rechargeable Price on request