Boat part number 7700570 is a new CPT-S high chirp thru-hull flush mount transducer from Raymarine, part number A80447 . Commonly used on Crownline Boats, part number 45043 , but may be used on other boats. This thru-hull transducer is constructed out of matte black plastic. It measures approximately 4" L x 3 3/8" Dia. and requires an approximate 2 3/8" Dia. cutout. It connects via (1) 9-pin male connection. Manufacturer features: Supports single High CHIRP sonar with a 25° conical beam 20° Angled element Integrated seawater temperature sensor Up to 900 ft (274 m) depth range Includes 10-meter cable Specifications: Boat Manufacturer: Crownline Boats Part Number: 45043 Part Manufacturer: Raymarine Part Number: A80447 UPC: 723193816509 Material: Plastic Color: Black Overall Dimensions: 4" L x 3 3/8" Dia. Cutout: 2 3/8" Dia. Connection: (1) 9-Pin Male Connection Sold as seen in pictures. Customers please note every computer shows colors differently. All measurements are approximate. Hardware and instruction / installation manual not included.