Centek Thru Hulls are constructed from compression-molded fiberglass and will not corrode like conventional fitting made from bronze or stainless steel. A weighted rubber flap helps prevent the backflow of water.

• Exhaust thru hull fitting
• For use with 3 in. inside diameter marine exhaust hose
• Includes rubber flapper to prevent backflow of water into the exhaust system
• Black color
• Made of compression molded fiberglass
• Will not corrode like metallic thru hulls
• 4 pre-drilled mounting holes
• 5 1/2 in. length
• 3 in. shank length
• 4.88 in. flange diameter
• Replacement flapper repair kit P/N 1200313

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