Disimilar metals in coolant system

[snowbird30ds]

What are the recommended hosetails and fittings to use in the closed cooling system into aluminium? Does it matter when it is anti-freezed water or should I be picky?

 

[PaulRainbow]

I'd be thinking about plastic ones.

 

[VicS]

What are the recommended hosetails and fittings to use in the closed cooling system into aluminium? Does it matter when it is anti-freezed water or should I be picky?

The antifreeze should have been diluted with distilled water or water with a very low dissolved solids content. It probably does not therefore matter however if it troubles you then use plastic fittings as PR suggests

https://www.asap-supplies.com/fittings-valves-strainers/fittings/non-metallic-fittings