The Burndy (YRB31U29) Compression Splice Reducer Barrel is designed to connect two different sizes of conductors, with Barrel A accommodating 350 kcmil and Barrel B fitting 250 kcmil cables. This splice reducer ensures a secure and reliable electrical connection, allowing for a smooth transition between cables of different gauges. It is in new condition, never used, and comes without a box. Ideal for commercial and industrial applications, it provides excellent performance and durability in various wiring setups.