This U0817742 Hose Clamp is designed for the MEC-O-MATIC VSP Series Peristaltic Pump to secure a hose over a fitting. The MEC-O-MATIC Series VSP variable speed peristaltic metering pumps dispenser head is molded of highly chemical resistant polycarbonate and is designed to snap on and off without tools. MEC-O-MATIC’s self-lubricating roller assembly, included in the head assembly, makes possible long tubing life and the unique quick release, twist off head makes tubing replacement simple and fast.