[deniseO30]

I think you will find standard 1/2"od ball end tubes fit the bottom nut of the "marine" facet. Basically they are the same as a bathroom facet's connection. Same on the Galley sink.

The "ball" end is basically the same as what would be a loose compression ring. The "nut" on the bottom of a facet is an oversize or reducing compression nut.

 

[deniseO30]

unless you are taking the sink out.. you will need one of these.. assuming you can even get under a head or galley sink.