Recently I purchased from the Home Depot a package of 3 fillers for an empty space in my fuse box. It is a QO Load Center. I wrote down all the specs and written info that is inside the Fuse Box and showed the sales person. He said those are the ones, but they don't fit.
I lost the 1st one as it fell into the space of the wall. So I put a second one there, but if you touch it, it will either fall out or fall into the wall space.
Does anyone know how I can get one that fits in that space.
There is one opposite it that fits very tight and snug and never moves.
These new ones have no ridges to keep them there.
Appreciate any advice.
Thanks

Not the cheapest, but you could buy a couple of 20 Amp Breakers, Maybe around $6 each, and if a working one fails, you already have a breaker, just need to swap the wire.