Winterproof 5L

“Bi Winterproof is the ideal solution for the winter-ready of the swimming pool. With this product you can keep the water in the bath during the winter, which saves you on water consumption and prevents the bath from becoming dirty. Moreover, BSI Winterproof ensures for it That your swimming pool is ready for use in the spring. Specifications: - retains water in the swimming pool during the winter - saves on water consumption - prevents the swimming pool preventing the swimming pool in the spring - effective at low concentrations - long -term protection against precipitation and contamination - no antifreeze, does not protect against frost