Dixon Style HS Worm Gear Clamp - 2-52/64 in. to 3-48/64 in. Hose OD - 10 QTY - John M. Ellsworth Co. Inc.
Amazon.com: YDS All 300 Grade Stainless Steel W4 German Type Hose Clamp, Worm Gear, 25-40 mm (1" to 1-5/8") Diameter Range, 12 mm Bandwidth (Pack of 10) : Industrial & Scientific