Screen door roller assembly

I’m trying to identify this screen door roller assembly.
The housing is white plastic, approximately 2-3/4” long x 1-1/4” tall x 3/8” thick.
It contains a 1-inch metal wheel mounted to a spring-loaded metal insert with two vertical springs.
The housing has a slotted plastic screw (for height adjustment) located off-center.
This mounts inside the bottom rail of the door frame (not a corner insert).
I’ve uploaded four photos showing all sides and internals.