Foldable Water-Filled Pool Cover Weights

Measuring approx. 29 cm x 30 cm (square) or 28 cm diameter (circular/prism), these weights are built from robust waterproof PVC engineered for long-term UK garden use. They feature strong resistance to UV rays, rain, frost and thermal cycling — preventing hardening, discolouration or seam separation over multiple seasons. A transparent fill port and simple rotary seal allow fast, controlled water addition and complete drainage — no tools, no spills, no waiting for drying. Weight increases predictably with water volume, delivering firm, non-slip anchorage that keeps pool covers sealed against prevailing winds. Their modular square shape supports customisable layouts across all common domestic pool forms. And because they empty and fold flat, they occupy negligible space when stored — perfect for UK homes with small sheds, garages or balconies.