Residential 19 Inch Ring Rails - 1.625 x .049 Inches - Pair filter-length_18 3/8 inches The specs will work with

The specs will work with these pumps: Hayward NorthStar

and 1 SF120 bolt

It can be installed on floor

They provide up to 12 ON/OFF operations each day with a minimum ON/OFF time of 1 hour

respective probes (pH and ORP probe)

Residential 19 Inch Ring Rails - 1.625 x .049 Inches - Pair filter-length_18 3/8 inches The specs will work withThis pair of residential pool ring rails provide a hand grip for in wall pool ladders. The wall thickness is . 049 inches. The distance between the front (pool) rail and the first back (anchor) rail is 19 inches and the overall outside diameter of the rail tubing is 1. 625 inches. The ring rails are constructed of 304 stainless steel. Their long lasting, high sheen mirror finish will keep your pool looking great for years with little maintenance.