Swimming Pools, Pool Care & Water Play

Polysphere Filter Balls, 500 g

Lightweight media for compatible sand filters; these filter balls are filtration media made from 100% PET. This 500 g quantity is intended for sand filters and may also suit other sand filter models. Check your filter’s requirements before choosing replacement media. The stated sand equivalent is 18 kg, offering a lighter alternative to handling that quantity of sand. The product is also listed for filters with a flow rate of approximately 2,006–3,785 litres per hour. The 18 kg figure refers to the sand equivalent, not the weight of the filter balls.

Key product details

1. For sand filters: Intended for sand filters, with compatibility also listed for other models. Check the requirements for your specific filter.
2. 100% PET: The filter balls are made from 100% PET, as specified for this product.
3. 500 g quantity: The product contains 500 g of filter balls. Its stated sand equivalent is 18 kg.
4. Listed flow-rate range: The product is listed for filters with a flow rate of approximately 2,006–3,785 litres per hour.
5. Pressure information: Lower pressure than sand is listed as a flow advantage. Check your filter’s instructions for guidance on using alternative media.

Experiences with Bloomcabin

1. "Ordering from Bloomcabin was straightforward, and the team answered my questions before I purchased. I'm very happy with my choice." – Sophie Taylor
2. "My order arrived carefully packaged and was exactly as described. The quality met my expectations, and I would happily purchase from Bloomcabin again." – James Wilson
3. "I had a question about my delivery, and Bloomcabin's customer support was friendly and helpful. They kept me informed and made the whole experience easy." – Olivia Anderson