
Quick overview
- SuperPro replacement grid Part FC-9825, an 11 by 18 inch DE element.
- Sized 11 in x 18 in Measure the grid you are pulling out before ordering, since a grid set mixes sizes.
- Holds the DE cake The fabric is what the diatomaceous earth clings to, and that cake is what actually filters.
- Sold singly One grid, so you can replace only the element that has failed.
- Common failure points Torn fabric, a split seam or a crushed frame all let DE back into the pool.
- DE in the water is the tell Powder returning through the jets after a recharge usually means a grid has opened up.
Similar products
Other products people compare with this one.
Product details
The SuperPro FC-9825 is a replacement DE filter grid measuring 11 inches by 18 inches. It is sold as a single element so you can change just the one that has failed.
How a DE grid works
The grid itself does not do the filtering. Diatomaceous earth is drawn out of the skimmer and coats the fabric, and it is that thin cake of powder that catches the fine dirt. The grid is the frame and the cloth that hold the cake in place while water passes through.
When to replace one
DE returning to the pool after you charge the filter is the classic sign. So is a filter that will not hold pressure or that keeps needing more powder. Open the tank, lift the grid assembly out and look at each element for tears, split seams and crushed frames. Measure whatever you pull out, because a grid set usually contains more than one size.
| Brand | SuperPro |
|---|---|
| Manufacturer part number | FC-9825 |
| UPC | 645544098252 |
| Type | DE filter grid |
| Size | 11 in x 18 in |
| Shipping weight | 0.9 lb |
| Ships | Parcel |
Request a quote
Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.
Customer reviews
More from Filbur
Questions and answers
What people ask about this product, answered by our pool techs.





















