Second Opinion

[Dave100456]

What do the panel think?
Specificatuion for skin fitting to allow seawater to exit from AC unit, sited above the W/L. Does it need to be DZR as its not in the water (for long) and thus minimal galvanic action.
For the extra few pence I'd use DZR but its difficult to get the correct size in chrome finish.
Thanks

 

[Kelpie]

I'm not an expert, but perhaps 316 stainless would be a suitable option if you want it to be shiny and above the waterline?

 

[Talbot]

Why use metal at all. Avoid these problems and use Marelon fittings and valves