This part is a Bushing Reducer 2" Street x 1 1/2" Slip converts a 2" glue in fitting into a 1 1/2" Glue In Fitting. For example you can install a 2" manifold in place of 1 1 1/2" Manifold by gluing this on the 1 1/2" pipe and gluing it inside of a slip 2" Manifold.. I have pictures illustrating this in the picture section.. This part is glued inside of a slip 2" fitting that would measure about 2-3/8" Inside Diameter and a 1 1/2" piece of pvc pipe would glue into this part which measures about 1 7/8" Inside diameter.. This listing is the bushing only all other parts not included..  427-020, 411-5030B, 603728, 411-5030, 080610508347, 80610508347, 89-270-1260, 45 street slip 2", 45 lcv fitting, 45° ell,45° street ell, 45 street ell, 45 Elbow 2"spg x 2"s,45 elbow, hot tub 45 fitting, spa 45 fitting