Rubber Seal ? Wire pass thru ?

[tech101]

Hi Junction box comes with this Rubber Ring With a slit in the middle where you can make the cable go thru and then plug that rubber ring in to the hole to seal it properly. Do you know where Can I buy those and specifically for the hole in behind the PFA120 ? It does not have to have the slit in the middle or wire pass thru just something to seal it up.. Wonder why the hole is there to begin with since I connect the conduit anyways to feed the wire up to the junction box

 

[TonyR]

If you go here: 50 Piece Flush Mount Black Hole Plug Assortment for Auto Body and Sheet Metal

if the assortment isn't OK, then you may find some on the page that will work better for you.

 

[looney2ns]

I had to end up using a expandable freeze plug on that junction box.
The appropriate sized one of these.
I found mine at the local NAPA auto parts store.

 

[tech101]

Thank you so much I will try those options.