Allows 4″ Iolite PLUS square trimless to be installed even no exposed flange and no extension beyond ceiling plane. Mud ring attaches to drywall and requires professional drywall finishing.
Mounts trimless downlight with no exposed flange and no extension beyond ceiling plane Die-cast aluminum mud ring attaches to drywall Only for use with NHIOICD-4PS new construction housings and NIO-4PSTL reflectors