GLI Whirlwind Above Ground Swimming Pool Solar Cover Reel w/ Tube – (Choose Pool Size). Our GLI Whirlwind Above Ground Aluminum Solar Cover Reel system is constructed from high-quality aluminum creating a durable product. Easily use it by yourself to use your pool whenever you want, regardless of who’s around. Attach your solar cover with the included straps and hardware, and make dealing with your solar cover a breeze. Hardware & Strap Kit (to attach solar blanket to tubing). Constructed of high-quality commercial grade structural aluminum. Engineered with high-strength nylon bearings for effortless one-person operation. Socket mount for easy crank & cover removal. Bracket mounts on the top rail of above ground pool. Base: 3 5/8″ W x 5 1/4″ L. Pole Size and Diameter of Tubing. Item # 55-1803WH-TK – 18 ft. Item # 55-2403WH-TK – 24 ft. Item # 55-2804WH-TK – 28 ft. Please Note: We do not recommend using anything larger than our 1200 series (12 mil) cover with this reel. Our 1600 series or (16 Mil) solar covers are much heavier, and most residential reels cannot handle the extra weight.