Water bags are the best way to keep your swimming pool's winter cover secure during the colder months. This single chamber water bag is best used with winter covers that have built in water bag loops.
This water bag is manufactured from quality 18 Gauge vinyl. It has been designed to withstand sub-zero temperatures and has been treated with antibacterial & antifungal additives, as well as UV inhibitors to prevent fading.
Tip: If you are having trouble closing a water bag's valve, try soaking them in warm water.