Humminbird XTH 9 DB 74 P Dual Beam Plastic Thru-Hull [710185-1]XTH 9 DB 74 P Dual Beam Plastic Thru Hull Features: 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' WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov. Specifications: Pins: 7 Speed Included: No Mounting Style: