Poolside Patio Clock - 12 Inch state_Oklahoma This Lifeguard On Duty Write-On

This Lifeguard On Duty Write-On Sign measures 10 x 12 inches

The dimensions work with Hayward EC60 filters

Calibration can be easily performed by entering the AutoCal feature and entering a value to match an external reference

This standard plus pool ladder by S

It is used for Calcium Hardness testing in Taylor Kits

Poolside Patio Clock - 12 Inch state_Oklahoma This Lifeguard On Duty Write-OnOur 12 inch, weather resistant patio clock features second hand quartz movement and large easy to read numbers. You can use this clock indoors or outdoors. It is constructed of white durable ABS material with a glass lens. The clock does require one AA battery (not included). Many states require that a clock be visible from the spa or pool. This allows your spa patrons to keep their stays to 15 minutes (or the time required by law).