142-18 Grommet, Round, Open Back, 2.5, poly bag

Designed and engineered in USA. Assembled in USA using domestic and imported components.Allows 2 1/2 diameter sealed units to be flush mounted.Fits 72, 142, 143, 162, 163, 192, 193, 196, and 197 series lights.Fits 3 mounting hole.Installation of lights wit