Rockford Fosgate M2D2-12IB Marine Subwoofer, DVC 2Ω Color Optix Infinite Baffle, 12" w/ Black/Stainless Grills GROUP+ambassador-marine-irva-1h-shower-mixer-thin-wall-mount Adds 4 inches of vertical

Adds 4 inches of vertical rise

threaded ring and the Marinco Easy Lock ring

pole to pole

secure locking bracket

which is a very convenient design

Rockford Fosgate M2D2-12IB Marine Subwoofer, DVC 2Ω Color Optix Infinite Baffle, 12" w/ Black/Stainless Grills GROUP+ambassador-marine-irva-1h-shower-mixer-thin-wall-mount Adds 4 inches of verticalDVC infinite baffle marine subwoofer delivers loud, clear, accurate bass, and lights the way Connects with the optional Color Optix Controller and RF Connect App to customize your color patterns Equipped with a VersaSwitch to easily change impedance between 1 and 4 ohms Element Ready design and IP67 certification protects from UV rays and water spray Full 2 year warranty