SmartSeal and WaveSeal360 hybrid smart clamps secure hose connections and prevent unwanted flow of fluid and air. Through patented hybrid technology, these next generation clamps seal in a steady 360 degree pattern in response to pressure and temperature changes. With their compact design and lower profile, you get an optimal heavy-duty constant tension clamp without all the bulk. Clamp has a 300SS 1/2IN Band, 300SS 1/2IN Spring Liner, 300SS Housing and 300SS 5/16IN Hex Screw. Size 11 (Minimum Diameter 0.78IN - Maximum Diameter 0.98IN)