Overview Give your pool the deep-down clean only a DE filter can deliver with the Poolzilla Universal Grid Set, a complete replacement kit that includes seven full-size grids plus one partial grid — everything you need to refresh your DE filter in a single purchase. Diatomaceous earth filters are the gold standard for crystal-clear water because the powdery DE coating on each grid traps particles down to just a few microns — finer than the eye can see, finer than what cartridge or sand filters typically catch. Each grid in this set is built with a rugged polypropylene frame wrapped in tightly woven filter fabric that holds DE powder evenly across the entire surface, which means consistent filtration, better water clarity, and longer intervals between deep cleans. Designed as a true drop-in replacement, these grids slot right into your existing manifold and tank without any modifications, so you can go from worn-out and weeping DE into your pool to fresh, sparkling-clean performance in a single afternoon. Plan to inspect your DE grids every time you break down the filter for a thorough cleaning — usually two or three times per season — and replace the full set every two to three years, or sooner if you see visible tears, fabric separation, or DE powder leaking back into the pool through the return lines. Worn grids force your pump to work harder, waste expensive DE powder, and let fine particles slip through that should have been filtered out, leaving you with dull, cloudy water no amount of shocking can fix. The good news: swapping in a new Poolzilla grid set is straightforward — drain the tank, remove the old manifold assembly, lift out the tired grids, slide the fresh ones into place, reassemble, and recharge with DE through the skimmer. Order your replacement set now and tackle the swap before swim season hits its peak, so your family can dive into water that's as clean and clear as the day your pool was filled. What's Included Your order includes the selected quantity of DE filter grid sets. Each unit is individually inspected for quality before shipping.