[Gbollom]

Sounds like your referring to junction boxes that some people use to splice the wire from the housing into the cord. You need to make yourself some mounts bc the cast NPT fittings will break if you dont

 

[Gbollom]

Yep that's just conduit and a junction box, you don't HAVE to have them but they make it look nice

 

[Gbollom]

Yep home depot, lowes, possibly even your local hardware store