Filter Housing, Rear GilAir-3/GilAir/5 Back Catalog number: 202816-1 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-1004-01 PM-2.5 Impactor Kit, Replacement for Models 810-10 Price on request 910-0912-NO-R GilAir-Plus Data Logging 5-Pump Starter Kit, Bluet Price on request KB-50 Kynar Bag 50.0L Price on request