I caught that on my boat only on the deck side. Matt can the plastic thru hull fitting be replaced with stainless and/or brass? [/quoteYes. Perko and Attwood make them. Perko has plain bronze and chrome plated bronze. Attwood has stainless. Whitecap makes a ss/plastic thru hull. Stainless flange on the outside and plastic inside. Rather interesting.There is also thru-hulls made of a material called Marelon. Per ABYC Standards, Bronze and Marelon are the only recommended materials for below the waterline.
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