Hayward SP1041100 ABS Plastic Round Escutcheon Plate White, Pack of 100 R0366900 This is the version used

This is the version used on filters made 2001 and later

Utilizes a 6-inch Buttress Thread

Filbur Pool and Spa filters are made of Reemay spunbound polyester pleated filter media with thermally bonded polyurethane caps and punched PVC pipe cores ensuring durability and consistent flow

HydroAir 31-4003WHT Cover

Buttress Thread

Hayward SP1041100 ABS Plastic Round Escutcheon Plate White, Pack of 100 R0366900 This is the version usedRound Escutcheon Plate For 1 1 2 Inch Pipe; ABS Hayward brings its industry expertise to a wide range of deck drains, lane marker anchors, anchor sockets, and escutcheons. Features: Escutcheon plate Made of ABS plastic material Used to bridge the gap between the outside diameter of the pipe and the inside diameter of the opening in said surface Fit for 1 1 2 inch pipe size Available in white color and round shape