Designed specifically for in-ground pool covers, these durable and reliable water tubes provide essential weight and stability to keep your cover securely in place. The heavy-duty, puncture-resistant material withstands harsh weather conditions, ensuring long-lasting performance and reliability. Easy to fill and drain, they offer a hassle-free solution for preventing wind lift and debris accumulation from compromising your pool cover's integrity. Invest in peace of mind and maintain your pool’s safety and cleanliness throughout the off-season with these double-chamber water tubes.