This is a PVC Schedule 80 Reducing Coupling with Slip x Slip fitting connections that measure 4 x 3 Inch
requiring no patch
This Neptune Benson stainless steel in-line pool strainer reduces flow with a 12 x 6 Inch standard flanged connection
Bolt is 3/8 inch threaded and made of T304 stainless steel
Pro Series Filter Drain Cap Kit - Pre 2005 Models steps_2 Steps This is a PVC ScheduleThis is a Hayward Filter Drain Cap for Pro Series Sand Filters Models: S270T2, S310T2, S360T2, S140T, S144T, S180T, S210T, S220T, S220T2, S230T, S244T, S244T2, S270T, S164T, S166T, S210S, S244S, S310S and Pro Series Plus S311SX, S311SXV, S360SX Sand Filters.