AQUACHEK 3-In-1 Blue Biguanide Test Strip 25 Count 561625A single-and-multi-gas-detectors • Straight temple arms eliminate

• Straight temple arms eliminate pressure on head and temples

When properly fitted and used with approved 3M™ cartridges and filters

No packaging waste with each pair

the 2076HF P95 filter provides at least 95 percent filter efficiency against particles

Protection is built into the fabric itself there are no films or laminates to abrade or wear away

AQUACHEK 3-In-1 Blue Biguanide Test Strip 25 Count 561625A single-and-multi-gas-detectors • Straight temple arms eliminateAquaChek 561625A Test Strip; Biguanide Total Alkalinity pH Testing, Blue, 25 Strips Bottle Ideal for customers who use biguanide as a sanitizer in their pool or spa. Biguanide is a chlorine free sanitizer such as BAQUACIL Chlorine Free Swimming Pool Sanitizer and Algistat, BaquaSpa Sanitizer, Softswim Bactericide, PolyClear