The SkimmerMotion ¾” corrugated hose in this product is a new design, they are 4ft long vs. the 7 ft previous version. The 7Ft hose will continue to be supported. This NEW DESIGN was tested and proven to be more efficient and eliminates tangle. Instead of connecting the Tee-Joint directly to the Suction side Cleaner (See pictures ). The SkimmerMotion ¾” corrugated hose in this product is a new design, they are 4ft long vs. the 7 ft previous version. The 7Ft hose will continue