#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 #2467: Exhaust Vent (thru hull duplex) $167.00 Add to cart #3417: Bulkhead fitting $40.00 Add to cart #4416: 75mm/60mm reducer for 3413 $41.00