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Old 11/17/2016, 03:33 AM   #82
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Join Date: Jan 2010
Location: Canadia
Posts: 4,282
Only the armature has to be exposed to saltwater. This would have to be mainly of 216 stainless steel for strength to stand up to the pressure of such a large pump but some of the moving parts could be of plastic.


My Gawd! It's full of corals!

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