Plastic Old work box fill.

[augie47]

After reading the Carlon literature, I agree with Rob (post #20) although I never counted those "clamps" in checking box fill.
I felt lucky when I saw they actually stayed in the box and not on the floor.

 

[hbiss]

I felt lucky when I saw they actually stayed in the box and not on the floor.

They are just little doors that close up the unused openings.

-Hal