Earl's 900305ERL Chrome Econ-O-Fit Hose Clamp Chrome Econ-O-Fit Hose Clamp Econ-O-Fit Size 5 Econ-O-Fit I.D. 35/64" Fits Perform-O-Flex & Auto-O-Flex Hose Size 4 or 5 Hose I.D. 1/4"