The GeneralAire 4783 is the correct replacement prefilter for the following air cleaner models:
The General Aire Air Cleaner Prefilter G8-0885 is a replacement air filter for the GeneralAire GA52F32 Grill Mount Air Cleaner. The G8-0885 prefilter captures large airborne particles within your home and sends the smaller particles to the main air filter within the GA52F23 air cleaner. The GeneralAire 4783 prefilter is an OEM GA52F32 replacement part that helps improve your overall indoor air quality.
General Aire Air Cleaner Prefilter G8-0885 specifications: