Raymarine B175L Bronze Low Profile 1000W D/T Through Hull Transducer 0° AngleRaymarine B175L Bronze Low Profile 1000W D T Through Hull Transducer 0 Angle Raymarine B175L Bronze Low Profile 1000W D T Through Hull Transducer 0 Angle are for the serious offshore angler and coastal explorer, the Raymarine B175L is the ultimate low frequency CHIRP solution. Designed for high speed performance and exceptional depth, this 1kW "Low Profile" transducer sits nearly flush to your hull, reducing drag and improving water flow to provide