Speed Transducer;Thru Hull Installation;Compatible with ST40 Instruments;Compatible hull material: aluminium and fiberglass;Cable: 30ft (10m) Cable;Hole required for installation: 2

• Raymarine Speed ST300/P371 Plastic Thru Hull Transducer - Black
• Black

Raymarine Speed ST300/P371 Plastic Thru Hull Transducer - BlackRaymarine