Hayward Horizontal In-Line Style Sight Glass for In-Ground Pools | SP1072S Sports / Games inspect the drive wheels themselves

inspect the drive wheels themselves for flat spots

Hayward Part Number SPX1091GW UPC 610377791496 Fits Into

The flow switch and its magnet work as a paired assembly — if either component is damaged or missing

or replacement without cutting pipe

Using the correct OEM fasteners ensures a watertight

Hayward Horizontal In-Line Style Sight Glass for In-Ground Pools | SP1072S Sports / Games inspect the drive wheels themselvesThe Hayward SP1072S is the OEM horizontal in line style sight glass for in ground pools, providing a 1 1 2" socket connection in a durable ABS construction finished in white. Installed in the return line, the SP1072S gives you a direct visual on water flow letting you confirm that backwashing is complete and circulation is running before closing the valve. Its ABS construction resists UV and chemical exposure, and the 1 1 2" socket (slip) end