The 10’ Heavy Duty Double Bag is a reliable solution for securing winter pool covers on in-ground pools. At 10’ long and made from durable blue vinyl, this double-chamber water bag is built to withstand freezing temperatures, strong winds, and harsh outdoor conditions. Its dual-chamber design helps it stay in place more effectively than single-chamber options, reducing the chance of shifting or rolling during winter storms. Easy to fill and compatible with standard garden hoses, it's a trusted choice for pool owners looking to protect their investment through the off-season.