The GE GXWH40L water filter cover from Part For That is made for homeowners who want a fitted way to shade a clear whole-house filter housing. If your GE GXWH40L is outdoors, in a garage window, or anywhere sunlight can reach the clear canister, covering the housing helps block the light that can contribute to green algae growth.
Why cover a GE GXWH40L clear filter housing?
The GE GXWH40L uses a clear housing so you can see the filter cartridge. That is useful for inspection, but it also means light can reach the water and cartridge when the filter is installed in a bright location. Sunlight exposure is one of the common reasons a clear water filter housing turns green.
- Blocks sunlight from reaching the clear housing.
- Helps reduce algae growth caused by light exposure.
- Keeps the housing accessible for filter changes.
- Looks cleaner than foil, towels, paint, or improvised covers.
Compatibility
This cover is designed for the GE GXWH40L whole house water filtration system. Check the model number on your filter housing before ordering. Similar-looking housings may have different dimensions, so model confirmation matters.
When this cover makes sense
- Your GE GXWH40L clear filter housing is mounted outside.
- The housing receives direct or indirect sunlight.
- The water filter housing turns green between filter changes.
- You want a fitted cover instead of a temporary DIY sunlight block.
Buy the GE GXWH40L cover
The Part For That GE GXWH40L cover is available through the store. SKU: WFC-GXWH40L-BLK-1.
Related water filter resources
These pages explain why clear housings turn green, how to prevent algae, and when a cover is the better fix.
- Why is my water filter turning green?
- How to prevent algae in a water filter
- Do clear water filter housings need to be covered?
- Best way to block sunlight from a whole-house water filter
Other fitted water filter covers
If your housing is not a GE GXWH40L, check your model number and use the matching cover page.
FAQ
Will this cover fit the GE GXWH40L?
Yes. This page is specifically for the GE GXWH40L whole-house water filter housing. Confirm your model number before ordering.
Does this stop algae in a water filter housing?
The cover blocks sunlight from reaching the clear housing, which helps address one of the main causes of algae growth in exposed clear filter housings. It is part of proper filter maintenance, not a replacement for changing cartridges on schedule.
Can I still change the filter?
Yes. The cover is intended to be removable so the housing can still be accessed for normal filter changes and inspection.
What if my housing is already green?
Clean and service the filter housing first, then block sunlight to help prevent the problem from coming back. For the broader maintenance process, read how to prevent algae in a water filter.