Filter Ball Sand Lightweight Durable Eco-friendly for Swimming Pool Cleaning EquipmentSand,Lightweight,Eco-friendlyDurableFilter BallSwimming Pool,Cleaning Equipment

Features:
It features light weight, high strength. It is durable and can help you clean the pool.
Deliver an excellent filter result.
Have a high dirt absorption capacity.
They are lighter and more efficient than traditional filter media.
They are easy to handle and you have no more sand in the pool.
Specification:
Material: Fiber
Single item(approx.): diameter 4mm weight: aout 3.9g
Usage:
Open the filter container of the sand filter system.
Remove the existing filter material (if it is inside the container) and clean the filter container.
Fill the filter container with a filter ball.
Close the filter container.
Open the machine and start working.