Rod holder inserts

[Airslot]

I got the 3 rod boxes. The lenght was fine but I had to trim about 1/2 or maybe 1/4" from the top of the cutout if my memory serves me. As far as sealant, I ran an experiment. I had a tude a GE tub and shower pure silicone sealant that I used since it was there. Holding up fine after a year and change.
Airslot