1.4 M Ceramic Smooth Tile Depth Marker 6 Inch x 6 Inch with 4 Inch Lettering reagent-size_16 oz The specifications will work with

The specifications will work with Hayward SPX1520Z1ESC

This grid fits Hayward Pro-Grid DE7220 filters

and high-end residential pools

This is a Generic Cartridge Filter Locking Knob O-Ring O-327 replacement with dimensions for Hayward StarClear Cartridge Filter C250

1.4 M Ceramic Smooth Tile Depth Marker 6 Inch x 6 Inch with 4 Inch Lettering reagent-size_16 oz The specifications will work withThis ceramic pool depth marker is printed with 1. 4 M and has a smooth surface. It's overall size is 6 Inch x 6 Inch and has a letter height of 4 Inches This ceramic pool tile is printed with ceramic glaze inks, then kiln fired to ensure the finest, most durable depth and safety marker line available. The smooth surface tiles are for waterline applications. Please note the M is not 4 inches, but is as pictured. Ceramic depth markers are essential for