Apollo™ Zone Marine Amplifier Mounting Bracket This mounting bracket is essential for installing your Apollo Marine Zone Amplifier correctly.  Simply secure the bracket to a flat surface and clip the amplifier in place, for a clean and tidy finish.  Technical Specifications: * Dimensions (WxHxD) - 3.94' x  3.94' x .3' In the Box: * Mounting bracket *Sold as an Individual Warning [https://productimageserver.com/prop65/6pt.png]WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov [http://P65Warnings.ca.gov].