Description
Keep your pool or spa water safely sanitized with the Valterra Blue Devil No.1 OTO Chlorine Level Indicator, a generous 32-ounce reagent refill built specifically for Blue Devil Test Kits. Consistently tracking chlorine concentration is one of the most important steps in protecting swimmers from harmful bacteria and preventing algae buildup. Simply dispense the OTO solution into a water sample according to your test kit directions, then match the color change against the included reference chart to quickly gauge your chlorine reading. Works seamlessly with all current Blue Devil Test Kits.
