Author Topic: Thru hull fittings  (Read 758 times)

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Re: Thru hull fittings
« Reply #3 on: August 24, 2023, 09:51:45 AM »
Somebody Came

I recently replaced several of the marelon through hull fittings on Bacchus, H54 - 22.   I found Forespar 253 Series Marelon Mushroom fittings at Defender Marine.  They had a number of different sizes and were long enough to go through the hull.  Note these were above the waterline fittings, not below the water line.

Good Luck
Scott Johnson
SV Bacchus


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Re: Thru hull fittings
« Reply #2 on: August 19, 2023, 04:49:06 PM »
I just replaced my 5/8 AC outlet in the transom from a cracked marlon to a bronze Groco.  Bought it at westmarine but they are available at Amazon.  They come in various lengths too. I think I step my AC hose up to 3/4 come to think of it.  You might need to do that too.


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Thru hull fittings
« Reply #1 on: August 19, 2023, 09:53:20 AM »
Has anyone found a source for above the waterline thru hull fittings (preferably marelon or stainless). Specifically need one that will accept the 5/8 ID airconditioning discharge hose. The current hole in the hull is approximately 7/8 inch in diameter and the hull thickness is 1.5 inches. I haven't been able to find any thru hulls that have enough thread length to go thru the 1.5 inch hull and then accept a retaining nut. (approximately 2 inches of thread length needed). The fittings I've found that do have that much thread length also have a body that is larger in diameter than the current 7/8 inch hole.
Any advice is much appreciated.
Someday Came
2010 H56, hull #1


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