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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!
- Brand: GeneralAire
- Part Number: 4646
- Replaces Part Number: 4610
- Pack Size: 1
- Filter Life: 6 - 12 Months
Fits In These Systems:
The GeneralAire 4646 fits in the following systems:
- GeneralAire AC500 Whole House HEPA Filtration System
- GeneralAire 400D
- GeneralAire 400R
Does a great job of removing rust. I bought two units so I can swap out filters easily. Only part I don't like: it's not easy to turn the bypass knob, and it leaks after a few months. Easy fix, add shut off valves before and after the filter. I can swap filters in seconds. Not easy to find O-rings either. One part I REALLY like, I can see how dirty the filter is or isn't, something you can't do with some filter unitsCollected by FiltersFast.com