SeaSucker ACR Cat 2 EPIRB Mount. So instead of permanently mounting the EPIRB bracket to your fiberglass mount it to a SeaSucker so you can take it off when you dont need it or move it to where you can quickly reach it. Specifications for SeaSucker ACR Cat-2 EPIRB Mount: Manufacturer: SeaSucker Size: One Size Length: 4 in Width: 4.5 in Depth/Thickness: 2.5 in Package Contents: SeaSucker ACR Cat-2 EPIRB Mount SeaSucker ME5228: ACR Cat 2 EPIRB Mount