Editorial Reviews:
Amazon.com Product Description The Humminbird XTH 9 20 P Plastic Thru-Hull Transducer is an economical alternative to bronze transducers, and works with thinner hulls such as aluminum. Constructed with an internal, steel sleeve that provides extra reinforcement, this 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 20 P is for single-, or dual-beam use with 20-, and 60-degree beam angles and operating frequencies of 200 kHz and 83 kHz. This unit measures 2.5 x 3.9 inches (W x H), with a 1.16-inch below-hull depth and a shaft diameter of one inch. The Humminbird XTH 9 20 P comes with a 30-foot connecting cable and all the necessary mounting hardware, including a pre-shaped fairing block. The XTH 9 20 P is compatible with Humminbird's; Matrix 12, Matrix 15, Matrix 17, Matrix 27, Matrix 67, Matrix 77, Matrix 87, Matrix 97, 727, 737, 767, 777C2, 787C2, 323, 343, 363, 383, 141, Piranha Max 10, Piranha Max 15, Piranha Max 20, 931C, 937C, 515, 525, 535, 565, 585, and HDR610 sonar systems. This item is backed by Humminbird's one-year limited warranty.
Product Description Plastic Thru Hull Transducer Plastic 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. Plastic Thru-Hull Transducers require that a hole be drilled in the hull and the shaping of a fairing block. Professional installation is recommended. Bronze Thru-Hull Transducers are an alternative to Plastic Thru-Hull Transducers. Description: Single/Dual Beam, 20/60 Degree, 200/83 kHz transducer. 3.9andquot;L X 2.5andquot;W X 1.16andquot;D. Shaft: 1.0andquot; Diameter For Use With: Matrix 10, 12, 15, 17, 27, 67, 77C, 87C, 97, All 700 Series, All 300 Series, all PiranhaMax (except 240), 917c, 931c, 937c, 957c, 997c, 515, 525, 535, 565, 580, 585c, 595c, HDR610, Piranha 2, Piranha 4, XP2000, XP4000
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