Humminbird 9 DB 74 P Dual Beam Plastic Thru-Hull XTH. Whether you choose a single beam for a certain area of the river or you go with a dual beam for general observation you're ensuring a quality experience that will translate to landing more fish. This Thru-Hull Fishfinder from Humminbird allows for below-the-hull scanning in most situations providing great scanning angles and detail below the hull. With the Humminbird XTH 9 DB 74P Thru-Hull Fishfinder you can know exactly which way the crank is when you're within striking distance. The best fishing is often right in your face and when you're not you're losing fish. That's why the Humminbird Dual Beam XTH9 Thru-Hull Fishfinder is so handy. Setup is fast and easy and you get a crystal-clear picture day or night. Specifications for Humminbird XTH 9 DB 74 P Dual Beam Plastic Thru-Hull: Manufacturer: Humminbird Color: Black Cable Length: 30 ft Frequency Band: 200 kHz Features of Humminbird XTH 9 DB 74 P Dual Beam Plastic Thru-Hull Dual Beam 20/74 degrees 200/50kHz temp included 6.7"L x 3"W x 1.4"D (below boat hull) Shaft: 1" diameter Cable Length: 30' Package Contents: Humminbird XTH 9 DB 74 P Dual Beam Plastic Thru-Hull Humminbird 710185-1: 9 DB 74 P Dual Beam Plastic Thru-Hull XTH