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goodmatt78

Fitting size questions...heater, shower.

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goodmatt78

I have the 340 monsoon in a 05 VLX and want to put gate valves on the heater and shower supply lines for isolation/winterization.   What are the NPT port sizes for the shower and heater supply?

Shower supply - I believe it is a 1/4" hose that uses the starboard side engine block drain.  

Heater supply - maybe a 5/8" hose off top side of manifold near the Tstat.  

Thanks.

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Indebound
On 2/27/2017 at 11:38 AM, goodmatt78 said:

I have the 340 monsoon in a 05 VLX and want to put gate valves on the heater and shower supply lines for isolation/winterization.   What are the NPT port sizes for the shower and heater supply?

Shower supply - I believe it is a 1/4" hose that uses the starboard side engine block drain.  

Heater supply - maybe a 5/8" hose off top side of manifold near the Tstat.  

Thanks.

bump. I'm trying to replace the fitting on the block as well. I bought a 3/8" NPT as a guess but that was the wrong size.

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Woodski

@Indebound:  I thought they were 1/4" NPT but I could be incorrect on the block drain plugs along the side above the oil pan, I would have to go look to see if it is a 1/4" plug in a 1/2" NPT fitting setup.  Heater supply is a 5/8" hose & I think you are correct on the shower hose.

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