Dynamic Power Supply With Weekly Timer and Indicator size-in-gallons_301-500 This plastic depth marker tile

This plastic depth marker tile states 1/2

90 inches for the rail tubing and the distance between the front (pool) rail and back (anchor) rail is 32 inches

This is a PVC Schedule 80 Cap fitting with Slip fitting connections that measure 1 1/4 Inch

This item is fully compatible and interchangeable with Baker-Hydro part # 51B1026 and Pentair/Purex # P01340

all of which are sold separately

Dynamic Power Supply With Weekly Timer and Indicator size-in-gallons_301-500 This plastic depth marker tileThis is a Maytronics 9995678 US ASSY Dynamic Power Supply with filter indicator light and weekly timer. This Power Supply unit will work with the following Dolphin pool cleaners: Heavy Duty, Supreme M4 M5, DX4, Deluxe 4, Wave 50, Apollo, Apollo Plus, Edge, Discovery, Wave 75, Spectra Light Premier, DX6, DX5, Apollo Windo, Triton Plus, Neptune Plus, Edge, and Apollo Plus with Remote.