US PIPE 6" (6-inch) Fire Hydrant Extension Kit, For 4.25" to 4.5" (4-1/4" to 4-1/2") Metropolitan and Sentinel Plus.  By Hydrant Repair Parts, Inc.  Compare to part # 47557.  MSRP is $270!

Kit includes: rod coupling, clevis pins, cotter pins, bolts with nuts, rod extension, standpipe couplings, coupling gasket, standpipe barrel and standpipe coupling seal.  With Instruction Sheet.

New Old Stock in original box.  Box has been opened for inspection.  Box dirty & tattered, but parts are new and un-used.

Three available.  Buy 2 or more and receive discount.  Due to weight, eBay may not show accurate shipping cost on orders of 2 or more.