2 1/2 Ceramic Skid Resistant Tile Depth Marker 6 Inch x 6 Inch with 5 Inch Lettering length_60 Feet what you are really measuring

what you are really measuring is how acidic or how alkaline the pool water is

and is battery powered with a 100-1000 GPM

The nominal activation points are based on installation into an industry standard

This is a Large Extended Return Fitting for Fiberglass Pools

2 1/2 Ceramic Skid Resistant Tile Depth Marker 6 Inch x 6 Inch with 5 Inch Lettering length_60 Feet what you are really measuringThis ceramic pool depth marker is printed with 2. 5 and has a skid resistant surface. It's overall size is 6 Inch x 6 Inch and has a letter height of 5 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 skid resistant tile is surfaced in the factory, not sanded or coated, for a more reliable slip resistant surface! Skid resistant tiles are for