30amp shore power extension connector

[steven]

I want a watertight removable connection between two 30amp shore power cables.
The black fitting shown above (bezel screw-able in both directions) or equivalent.
Looks like a cable supplier includes one with a cable. But I only want the adapter.
Anyone know where to get one without buying a cable ?

(currently I cover the junctions with a neoprene sleeve cinched with elastic cord)

thanks

--Steve

 

[Mark F]

Looks like you can get just the coupler

 

[steven]

thanks. I searched again on Amazon and the coupler is now there also (might be different manufacturer) at 1/3 less $.
Ordered and tried it and it works fine (you have to remove the bezel on one of the cables).