Heavy-duty bags are 33% more durable than standard duty water bags
Built-in UV protection for longer life
Easy on/off valve engineered with the ORIGINAL leak-proof design.
A DURABLE SOLUTION THAT WORKS! Hold down your winter cover with bags that last. Thicker for even longer lasting durability. Quality, no leak valves can be filled with water from garden hose. Inflate with water 1/2 to 3/4 full.
Item # 4585P