Raymarine Bronze B260 D/T Broadband Thru-Hull Stem (includes Fairing Block) (DSM30/300 and CP300/370 connect)Ideal for bottom fishing, the B260 features 8 internal ceramics that provide excellent deep water sensitivity. The narrow, 6 beam 200 kHz ceramic will give you excellent resolution and crisp image detail needed for bottom fishing. The B260s low ringing is perfect for finding fish holding tight to the bottom and other structure. The seven element 50 kHz array has a wider 19 beam for deeper blue water fishing. The outcome at both frequencies is