Raymarine B258 Bronze High Performance Thru-Hull w/Fairing : Bronze High Performance Thru-Hull w/Fairing1000 Watt High Performance bronze through hull transducer with temperature. (B258) Fairing block includedCompatible with the following Echo Sounders: DSM250 and DSM300 SL Series: SL755RC, SL760RC , SL1250, and SL1250RC hsb2 Plus Series: L755RC, L760, L760RC, L1250,and L1250RC hsb2 HDFI Series: DSM250, L770D, L770DRC, L1260D, and L1260DRC Compatible hull material: wood and fiberglassMax Power: 1000 WFrequency: 200/50 kHzBeam Angles: 200 kHz 15?? x 21?? 50 kHz 3?? x 5?? (Elipitical beam measured fore-to-aft and port-to-starboard)Cable: 30ft (10m) cable with connector <!--- cis:L3Sd5WHmupQ= --->

Raymarine B258 Bronze High Performance Thru-Hull w/Fairing : Bronze High Performance Thru-Hull w/Fairing1000 Watt High Performance bronze through hull transducer with temperature. (B258) Fairing block includedCompatible with the following Echo Sounders: DSM250 and DSM300 SL Series: SL755RC, SL760RC , SL1250, and SL1250RC hsb2 Plus Series: L755RC, L760, L760RC, L1250,and L1250RC hsb2 HDFI Series: DSM250, L770D, L770DRC, L1260D, and L1260DRC Compatible hull material: wood and fiberglassMax Power: 1000 WFrequency: 200/50 kHzBeam Angles: 200 kHz 15?