This is a Pentair 78242200 Small Stainless Steel Light Niche for Fiberglass and Vinyl Installation in pools and spas. It has a 3/4 inch rear hub. This niche includes sandwich gasket for vinyl liner pools. This niche is used with SpaBrite and AquaLight Spa Lights.
The small light niches measure 6.5 inch total face diameter, 4.94 inches for body diameter and 5.55 inches in length. The light niches for vinyl installation have a sandwich gasket.
