Product Description: Bronze Thru Hull Transducer Bronze Thru-Hull Transducers are for large boats and for boats with in-board motors that make typical Transom Mount Transducers ineffective. They are not recommended for trailered boats as the transducer is not flush with the hull. Bronze Thru-Hull Transducers require that a hole be drilled in the hull and the shaping of a fairing block. Professional installation is recommended. Plastic Thru-Hull Transducers are an alternative to Bronze Thru-Hull Transducers. Description: Bronze thru hull transdcuer, dual beam, 20/74 degree, 50/200 kHz. Transducer size: 5.25andquot;L X 2.75andquot;W X 1.2andquot;D (below hull). Shaft diameter: .86andquot;. Fairing block not included. For Use With: 931C DF, 937C DF
Amazon.com Product Description: The Humminbird XTH 9 DB 74 Bronze Thru-Hull Transducer is for large boats, and boats with in-board motors that make most typical transducers ineffective. This bronze thru-hull transducer is not recommended for trailered boats, and Humminbird recommends you have it professionally installed due to the fact that it requires a hole be drilled in the hull and the shaping of a fairing block. The XTH 9 DB 74 is a dual-beam transducer with 20-, and 74-degree beam angles and operating frequencies of 200 kHz and 50 kHz. This unit measures 2.75 x 5.25 inches (W x H), with a 1.25-inch below-hull depth and a shaft diameter of 0.81 inches. The Humminbird XTH 9 DB 74 comes with a 30-foot connecting cable and all the necessary mounting hardware, but does not include a fairing block. The XTH 9 DB 74 is for use with Humminbird's 931C DF and 937C DF sonar systems, and is backed by Humminbird's one-year limited warranty.
