Home Products Feed Delivery and Storage Sure-Flo Uniform Feed Flow Sure-Flo Uniform Feed Flow Highlights Available for 16″ to 22″ hoppers. Reduces feed bridging. First feed in is first feed out. Reduces feed separation. Easy to install. Brochure Manuals Find a Dealer Built to Perform FIRST FEED IN, FIRST FEED OUTSure-Flo creates a first-in, first-out feed flow by directing feed down the hopper of the bin rather than down the center. EFFICIENT AND GENTLE FEED MOVEMENTThe pivotal movement of the heavy-walled molded cone gently promotes flow as feed passes. It reduces feed separation and counters bridging. EASY INSTALLATIONThe Sure-Flo support bracket quickly bolts to the hopper collar of new or existing feed bins.