Hydroponic Tower Base

This is a new base type for the Modular Hydroponic Tower.  I designed this to mount to a ¾" plywood board.  I increased the width of the top for better stability and to make room for 4 screw's.  The design is meant to be used with #8 x ¾" screws.  The depth of the tunnel extends past the inside board to allow water runoff without it touching the wood.