Introducing the exclusive adapter designed for seamless compatibility with UniPost steel posts, PostMaster posts, larger U-channels, and square metal profiles. This guide tube adapter is engineered to accept both U-channel and square sign posts, making it a versatile addition to your REDIboss78 post driver setup.
 
For optimal performance on 2lb, 3 1/8″ wide U-channels, please order the specialized REDIguide78slit adapter. Proudly made in the USA, this adapter delivers precision and reliability for diverse post installations. Pair it with the REDIboss78 and experience efficient, secure, and effortless UniPost fencing solutions.