Standard Horizon MLS-410 Fixed Mount Speaker - White [MLS-410SP-W] Brand_Ecofan by Caframo Diameter of mounting holes (each):

Diameter of mounting holes (each): 7/16"

or 20" widths

Requires no sanding or compounding

The Modular Dual PowerTower has been designed to allow your open array

snow blowers

Standard Horizon MLS-410 Fixed Mount Speaker - White [MLS-410SP-W] Brand_Ecofan by Caframo Diameter of mounting holes (each):MLS 410 Fixed Mount Speaker White Redesigned for clear, crisp, and audible reception, the Standard Horizon MLS 410 is setting the bar on external VHF speakers. Compact in size, this high performance communications speaker matches the impedance and output requirements of most Standard Horizon transceivers. Compatible With: Standard Horizon fixed mount VHF radios Transceiver Features: Flush or bracket mounted Compact size Weather resistant Technical