7/16 M/F Coaxial RF Surge Protector, 100MHz - 512MHz, DC Block, 750W, IP67, .5uJ, 20kA, Filter, Low PIM -155 dBc, Bracket Down, Hole MountPolyPhaser coaxial RF surge protector (also known as lightning surge protector, lightning surge arrestor or suppressor) VHF50ED-MA-PGR is in-stock and will ship same-day as purchased. This radio frequency surge protector / lightning surge arrestor helps protect your equipment from electromagnetic pulse (EMP) or power surges that are commonly caused by lightning...