6 IN - Adhesive Depth Marker - 6 Inch x 6 Inch with 4 Inch Lettering intended-usage_Residential - Aboveground It is used for alkalinity

It is used for alkalinity test with Taylor Kits

It also has full remote access with true duplex operation

Pentair reusable cartridge filter elements are made of a superior reinforced polyester material

They can accommodate 16 ounce size cups

Two 6 inch bronze anchors are required for installation (sold separately)

6 IN - Adhesive Depth Marker - 6 Inch x 6 Inch with 4 Inch Lettering intended-usage_Residential - Aboveground It is used for alkalinityThis pool depth marker states 6 IN and is printed with 4 Inch letters and has an overall size of 6 x 6 inches. The Deck and Coping Vinyl Depth Markers are skid resistant and designed for above the water line and deck placement around your pools and decks. Numbers, letters, and images are available in 4 inch lettering to meet National and State Codes. The vinyl stick on Depth Markers eliminate messy stenciling. They are made of a durable commercial