GeneralAire 4646 Pre-Filter for HEPA Models 400D, 400R, AC500
GeneralAire 4646 Pre-Filter for HEPA Models 400D, 400R, AC500
The GeneralAire 4646 Pre-Filter is a combination prefilter/charcoal filter duo that works to create optimum air quality for your home. It should be replaced every 6 to 12 months, depending on usage and air quality for optimum performance. If you have more odor-related issues such as tobacco smoke or pet odor, then you should replace your filters every 3 months. After opening the door of your air cleaner, grasp both edges of the filter and slide out your filter to replace. Shop the GeneralAire 4646 today, and take one step closer to clean air!
Specifications:
- Brand: GeneralAire
- Part Number: 4646
- Replaces Part Number: 4610
- Pack Size: 1
- Filter Life: 6 - 12 Months ( depending on usage)
- Compatible models: The GeneralAire 4646 Pre-Filter for HEPA Models 400D, 400R, AC500 is correct replacement for the following model numbers:
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GeneralAire 4646 FAQs
Which air cleaners does the GeneralAire 4646 pre-filter fit?
The GeneralAire 4646 is the pre-filter with carbon for GeneralAire HEPA air cleaner models 400D, 400R and AC500, according to GeneralAire. In GeneralAire's naming, the 400D is the duct model and the 400R is the room model. In the 400 series it goes in the top slot, above the GeneralAire 4645 HEPA filter.
What is the GeneralAire 4646 made of and what size is it?
The GeneralAire 4646 is a pre-filter with carbon (GeneralAire's brochure calls it a pre-filter with charcoal) measuring 11-1/2 x 15-7/16 x 1-7/8 inches, according to GeneralAire. It sits upstream of the HEPA filter in the top slot of 400 series units. One filter comes in each pack, and it is 5/8 inch thinner than the 2-1/2 inch 4645 HEPA filter.
How often should I replace the GeneralAire 4646?
GeneralAire says to replace the 4646 pre-filter with carbon every six months to a year. That is more often than the GeneralAire 4645 HEPA filter behind it, which is rated for two years. Disconnect power to the air cleaner before opening it, then slide the old pre-filter out of the top slot and insert the new one.