Seaview 12" Modular Mount Vertical 8" Round Base Plate - Top Plate Required [AM12-M1]12" Modular Mount Vertical 8" Round Base Plate Top Plate Required This Seaview Modular Mount works with most satellite domes. The modular design allows you to add various accessories and different top plates at any point. Thus making it a cost effective choice. Specifically designed to not take up a large amount of space results in the perfect solution where space saving is a must. Oval hollow mast section allows for easy cable management. Modular Top