View cart “#4416: 75mm/60mm reducer for 3413” 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 #1028: 28mm SS Exhaust Tube (per foot) $12.00 Add to cart #2460: Exhaust Vent (closeable duplex) $271.00 Add to cart #2467: Exhaust Vent (thru hull duplex) $167.00