10\” Adjustable Bolt On Flange Support Kit Hot Dip Galvanized – Empire Figure #431KT Designed to connect to back flow devices, water meters and to accomodate class 125 flange installation devices. Special cast steel coupling and straight thread nipple provide up to 4-1/2\” of height adjustment. Requires 2\” Schedule 40 extension pipe to be cut in the field(not supplied). 100% Hot Dipped Galvanized Finish Factory System Tested to 11,000 lbs. Product sheet link