#8.5 Reusable Depth Marker Stencil - 10 Inch x 6 Inch with 4 Inch Lettering filter-width_10 1/4 inches or 3 point calibration

or 3 point calibration

This plug has a 10 inch rod with 6-1/2 inch spacing between plugs

The Blackfoot I is a manually operated

you can add a TCI (Chlorine) and/or ORP sensor so you can test three factors (sold separately)

The AquaStar VGB Series of Anti-Entrapment Suction Outlets and Drains are compliant with the Virginia Graeme-Baker Pool and Spa Safety Act (ASME/ANSI A112

#8.5 Reusable Depth Marker Stencil - 10 Inch x 6 Inch with 4 Inch Lettering filter-width_10 1/4 inches or 3 point calibrationThis is a hard plastic stencil that allows you to paint the characters of 8. 5 on your pool deck to mark the depth of the water. The stencil has an overall size of 10 Inch x 6 Inch. Our line of hard plastic stencils are the industries highest quality stencils. Made of high impact styrene, they are designed to be reused for years. For use on the walls, coping, and decks of your swimming pool and spas. Easy to use! 1. Place the stencil. 2. Apply paint