When your pool water won’t stay clear even after cleaning your DE filter, worn grids could be the problem. The Pentair 59023400 Grid Assembly is a complete OEM grid set designed for the Pentair FNS Plus 48 DE filter. This filter grid assembly cycles thousands of gallons of water, all while filtering it with Diatomaceous Earth. Additionally, Shasta Pool Supply offers competitive pricing on OEM Pentair grids, making this replacement an effective choice.

What does the Pentair 59023400 grid assembly replace in an FNS Plus 48 filter?

The Pentair 59023400 grid assembly replaces the entire internal grid pack inside a Pentair FNS Plus 48 DE filter. It includes all matched grids assembled to the manifold, which ensures proper alignment. This complete replacement eliminates guesswork and helps the filter trap fine debris down to DE-level micron filtration.