3 FT Ceramic Skid Resistant Tile Depth Marker 6 Inch x 6 Inch with 4 Inch Lettering chlorine-type_Granular Calcium hardness is a necessary

Calcium hardness is a necessary component in pool water because it helps prevent leaching out of certain substances in pool equipment

This allows it to be bolted into place to create a secure

the MiniVac comes complete with silt bag

The tank is polyethylene and certified to NSF/ANSI 61

3 FT Ceramic Skid Resistant Tile Depth Marker 6 Inch x 6 Inch with 4 Inch Lettering chlorine-type_Granular Calcium hardness is a necessaryThis ceramic pool depth marker is printed with 3 FT and has a skid resistant 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 skid resistant tile is surfaced in the factory, not sanded or coated, for a more reliable slip resistant surface! Skid resistant tiles are for