Humminbird XFM 9 20 Plastic thru Hull Transducer
Plastic Flush Mount Thru the Hull Transducer

Dual Beam, 20/60 degree, 200/83kHz. Shaft diameter: 2", Bottom diameter: 3", Depth: 0.2"
(below hull). Cable Length: 30 Feet. No fairing block required.
Works with the following fish finders:
Humminbird 141C
Humminbird 161
Humminbird 325
Humminbird 343C
Humminbird 345C
Humminbird 363
Humminbird 365I
Humminbird 383C
Humminbird 385CI
Humminbird 515
Humminbird 525
Humminbird 535
Humminbird 550
Humminbird 570
Humminbird 575
Humminbird 580
Humminbird 581C
Humminbird 585C
Humminbird 586C
Humminbird 587CI
Humminbird 595C
Humminbird 597CI
Humminbird 717
Humminbird 718
Humminbird 727
Humminbird 728
Humminbird 737
Humminbird 747C
Humminbird 757C
Humminbird 767
Humminbird 768
Humminbird 777C2
Humminbird 931C
Humminbird 787C2
Humminbird 788C
Humminbird 937C
Humminbird 957C
Humminbird HDR 610
Humminbird Matrix 12
Humminbird Matrix 15
Humminbird Matrix 17
Humminbird Matrix 20
Humminbird Matrix 25
Humminbird Matrix 27
Humminbird Matrix 55
Humminbird Matrix 65
Humminbird Matrix 67
Humminbird Matrix 77C
Humminbird Matrix 87C
Humminbird Matrix 97C
Humminbird Piranha 1
Humminbird Piranha 2
Humminbird Piranha 4
Humminbird Piranha 5
Humminbird PiranhaMax 10
Humminbird PiranhaMax 15
Humminbird PiranhaMax 150
Humminbird PiranhaMax 160
Humminbird PiranhaMax 170
Humminbird PiranhaMax 20
Humminbird PiranhaMax 210
Humminbird PiranhaMax 220
PiranhaMax 180