ROHN’s R-25AG4 25G flat top section features the same 12 1/2 in face and 5/16 in solid serpentine zig-zag bracing as the standard 25G tower sections but it also comes with a flat top designed for use with the Rohn R-TB3 and R-TB4 thrust bearings. This makes the R-25AG4 the perfect way to top off your 25G amateur radio tower.BRBRYou can connect the 8 ft 3/16 in long R-25AG4 to any standard Rohn 25G tower section using the included bolts and double-bolted leg connections. The entire section has been completely hot-dip galvanized for years of worry-free corrosion protection and it can be used in guyed, self-supporting and bracketed tower configurations.