Garmin B265LH Bronze Thru-Hull Mount Transducer w/Depth & Temp - 12-Pin [010-12379-20] Boat Outfitting | Trim Tabs the 15" pipe spline post

the 15" pipe spline post for kayaks will do the trick

Rating: 118 db@ 1 Meter

Installs navigation lights above the antenna for maximum visibility and performance

Box Dimensions: 3"H x 5"W x 18"L WT: 1

Garmin B265LH Bronze Thru-Hull Mount Transducer w/Depth & Temp - 12-Pin [010-12379-20] Boat Outfitting | Trim Tabs the 15" pipe spline postB265LH Bronze Thru Hull Mount Transducer w Depth & Temp 12 Pin Garmin's best performing 1 kW thru hull transducer, this mount performs well in deep water and has exceptional bottom and water column detail. This transducer has a depth of 3,000 feet; an operating frequency of 42 to 65 kHz and 130 to 210 kHz; a beamwidth of 16 to 25 degrees and 6 to 10 degrees; and a 0 to 20 degree deadrise. Transducer kit comes with installation instructions. Follow the