2. Ceramic Smooth Tile Depth Marker 6 Inch x 6 Inch with 5 Inch Lettering valve-type_Butterfly If cyanuric acid is present

If cyanuric acid is present in the water at sufficient levels

3/8 x 3/8 x 3/8 Inch O

This battery should be left on the charger when not in use

Sodium Carbonate is normally used

Commercially rated for 300 pounds

2. Ceramic Smooth Tile Depth Marker 6 Inch x 6 Inch with 5 Inch Lettering valve-type_Butterfly If cyanuric acid is presentThis ceramic pool depth marker is printed with 2 and has a smooth 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 smooth surface tiles are for waterline applications. Ceramic depth markers are essential for commercial pools for improved safety, legal compliance, and