Large Stainless Steel Hose Clamp, Range 3" to 10"diameter , Pivoting Worm Drive Size 152, 2-pack The mom of all hose clamps, with a pivoting clutch and locking screw, is size 152 Opens to clamp a whopping 10" hose. Will crank down to as small as 2-3/8" Measures 9/16" wide Stainless steel