What Are FilterBalls?
FilterBalls are a revolutionary alternative to traditional sand media for pool and industrial water filtration. Designed to work in standard sand filter housings, FilterBalls are crafted from a patented blend of thermally bonded polyester fibers that enable exceptional filtration down to 5–15 microns, reduced backwashing, and energy savings—without the risk of fiber migration into the pool.
Proudly made in the USA, FilterBalls are UL-certified and meet ANSI/NSF commercial pool and drinking water standards for quality and safety.
FilterBalls Blü™
Our most popular option for large sand filters (275 lbs or greater), Blü™ is rated to 15 microns at 95% removal on the first pass. Each 1 cubic foot bag is equivalent to two 50 lb bags of sand, providing superior performance and easier handling.
FilterBalls Minis™
Perfect for smaller above-ground pool filter housings (250 lbs or less), Minis™ offer the same 15-micron filtration and are sold in 1/2 cubic foot bags—equal to one 50 lb bag of sand.
Why Choose FilterBalls?
- Energy Efficient: Reduces energy usage by 33–75%.
- Superior Filtration: Removes particles down to 5–15 microns.
- Less Backwashing: Holds over 20x more dirt than sand.
- Water Savings: Fewer backwashes mean less water waste.
- Eco-Friendly: Recyclable when it's time to replace.
