Skywalker Signature Series 2" Pipe Adapter - Fits over a 1.66" Mast or J Pole Here's a really simple way use an existing pole to install a satellite dish! This Quick Pipe Adapter works great on SuperDish antennas This unit is designed to fit a smaller pipe that is no less than 1-7/8" in diameter and a larger pole that is no more than 2-1/4" in diameter Fits over a 1.66" mast or J-pipe. Nominal 2" OD x 12" Length (actual OD of 1.825") Installs in minutes... Step 1: Slide pipe onto existing pole 2: Tighten bolts to secure to existing pipe 3: Mount satellite dish onto the adapter pipe