Dicalite DE25BOX 25 LBS Diatomaceous Earth Pool Filter D.E
- All-natural filtering media for de swimming pool filters.
- Designed for use in above ground and in ground de filter systems.
- High-grade de filter powder can filter down to 3-5 microns.
- Diatomaceous earth consists of fossilized remains of diatoms, a type of hard-shelled algae.
- Leaves water sparkling and crystal clear without clumping.