PVC Extension Ring for 2 Gang PVC Outdoor Box

[W@ttson]

Hello All,

1. Is there a non-metallic version of a 2 gang extension for an outdoor box? Essentially, a PVC equivalent of this: 2 Gang metallic extension
2. If not, can the metallic one above be used with a non-metallic outdoor box?
3. If there is no non-metallic equivalent - why not and does anyone want to start a company with me producing them?

I could not find any non-metallic extensions for 2 gang outdoor boxes. I ended up using the metallic one and bonding it with a Ground Clip, I don't have a warm and fuzzy about it though.

 

[W@ttson]

So did some more digging on this forum. Looks like this post was very similar:

Nonmetallic boxes with metallic switch plates?

I am student at a technical college. We were doing a project in the lab using electrical nonmetallic tubing and nonmetallic double gang boxes. The question came up as to why we could not use metal switch rings on nonmetallic boxes and I could not seem to find where specifically stated this in...

forums.mikeholt.com

Looks like the grounding clip approach is OK.