AQUACHEK 4-In-1 Red Bromine Test Strip 50 Strips per Bottle 521252A hard-hat-accessories Even low levels of phosphate

Even low levels of phosphate can lead to algae in your pool or spa

Type I Classification

Press the temperature control button for 2 seconds to switch off

Two innovative design features have been built in: a special valve cover that helps to direct exhaled breath and moisture downward and 3M’s proprietary Cool Flow™ Valve that helps to make breathing easier by reducing heat and moisture

Plus during wear the elastic cloth strap feels comfortable and cool

AQUACHEK 4-In-1 Red Bromine Test Strip 50 Strips per Bottle 521252A hard-hat-accessories Even low levels of phosphateAquaChek 521252A AquaChek 4 In 1 Test Strip; Total Bromine pH Total Alkalinity Total Hardness Testing, Red, 50 Strips Bottle Our Bromine strips include a test for Total Hardness since warmer water temperatures increase the potential for scale build up making it particularly important for spa owners to maintain proper hardness levels.