Compatible with the following: ST40 InstrumentsCompatible hull material: Aluminum and fiberglassCable: 30ft (10m) CableHole Diameter for installation: 2"Depth Only Raymarine Nylon Depth Thru-Hull f/ST40 $109.99PriceExcluding Sales TaxQuantity*Add to CartBuy NowNo Reviews YetShare your thoughts. Be the first to leave a review.Leave a Review