ADA-R1Seaview's innovative new modular electronic mounts feature a unique universal plate design that provide a cleaner look and greater installation flexibility. A pre-drilled anodized aluminum plate is incased inside the UV stable white ABS plastic. There are dimple holes on the top surface of the top plate that matches up with a drill template allowing you to precisely drill the appropriate holes for your specific radar. The end result is a nice clean look with no unwanted visible holes.This is one of Seaview's more popular Modular Top Plates. Fits almost all Closed Dome and Open Array Radars. Furuno 15" - 24" Radar Domes and 4' - 6' Open Array RadarGarmin 18"-24" Radar Domes and 4'-6' Open Array RadarsGeonav 24" Radar Domes and 4'-6' Open Array RadarsJRC 15" Radar Domes, Koden 18"-24" Radar Domes and 4'-6' Open Array RadarsLowrance 18"-24" Radar Domes BR24 / 3G / 4G and 4'-6' Open Array RadarsLorenz 12"-24" Radar Domes and 4'-6' Open Array RadarsNobeltec 17"-25" Radar Domes and 3.5'-6' Open Array RadarsRaymarine 18"-24" Radar Domes and 4'-6' Open Array RadarsSimrad 18"-24" Radar Domes / BR24 / 3G / 4G and 4'-6' Open Array RadarsSitex 12"-24" Radar Domes and 4'-6' Open Array RadarsSeiwa / Techmarine 12"-24" Radar Domes and 4'-6' Open Array Radars.