Home / Appliance / Parts / Air Purifier Pre-Filter F825-0173 Air Purifier Pre-Filter F825-0173$98.41 Price may not be up-to-date. In Stock View Product Part Number: F825-0173 Brand: WHITE ROGERS CO. Seller: Sears PartsDirect Categories: Appliance, Parts 60-day return policy Description This pre-filter (part number F825-0173) is for air purifiers. Pre-filter F825-0173 traps odors from the air as it passes through the air purifier. Follow the instructions in your owner’s manual for installing and using this part.