Up for sale is a Harbor Breeze Downrod Conversion Kit that allows you to convert your 1/2 inch collar to fit a 3/4 inch collar. This kit is brand new and designed to fit your needs. It has a 4 inch diameter and is 4 inches high, making it perfect for your home and garden needs. The item width is 34 inches, providing ample space for your hydroponic gardening needs. This conversion kit has been specially designed to work in conjunction with your air ventilation and extraction system to provide optimal environmental control for your yard, garden, and outdoor living area.