View cart “#2467: Exhaust Vent (thru hull duplex)” has been added to your cart. #5316 Isolation kit$18.00 #5316 Isolation kit quantity Add to cart Description Description Isolation kit eliminates contact between #1066 through hull fittings and metal hulls, preventing galvanic process corrosion. Related products Add to cart #4401: 3.5″ Warm Air Duct Insulation (per foot) $7.00 Add to cart #1110: Pot Holders (Nordic Dt/85Dt/DP) $158.00 Add to cart #50011: Custom Stainless Fuel Suction Tube $130.00