D.E. Filter Media (Diatomaceous Earth) 25 lb Bag | Pool Filter Powder

Diatomaceous earth (D.E.) is the finest filtration media available — filters particles down to 2–5 microns. If you have a D.E. filter, recharge with fresh D.E. powder after every backwash. 25 lb bag of pool-grade diatomaceous earth Filters particles as small as 2–5 microns Add through skimmer after each backwash cycle Compatible with all D.E. filter systems ⚡ Pro Tip from Our Techs: Check your filter's manual for the exact number of scoops after backwash. Too much D.E. can bridge across grids and reduce filtration. Too little means you're filtering through bare fabric. Most residential D.E. filters need 5–7 lbs after a full backwash.