Raymarine B175M Bronze Low Profile 1000W D/T Through Hull Transducer 20° AngleRaymarine B175M Bronze Low Profile 1000W D T Through Hull Transducer 20 Angle Raymarine B175M Bronze Low Profile 1000W D T Through Hull Transducer 20 Angle is the gold standard for offshore anglers and serious coastal boaters who want professional grade performance without the drag or hassle of a bulky fairing block. The B175M is a 1kW, CHIRP ready powerhouse designed for those who need a clear picture of the mid water column and the seabed at depths