Varify

VARIFY 4-in-1 Water Quality Tester - 0-9990 ppm EC & Temp Readings, Backlit Screen, Alkaline Battery-Powered, Compact Portable for Home, RO Systems, Swimming Pool, Office, Adventures, Cells (Halloween Sales)

Varify DIY Mold Test Kit for Home, 6-Room Indoor Air, Surface & HVAC Testing Kit, No Lab Required, 6 Pre-Filled Petri Dishes, 6 Sterile Swabs, Mold ID Guide & Record Chart, Visible Growth in 48–96 Hours

Varify 17-in-1 Water Testing Kit - 100 Strips, 2 Bacteria Tests, Fluoride, Lead-Test, Iron Checks, Color-Easy Reading, 17 Key Water Checks, Quick and Simple Assessment, 48-Hour Results, No Extra Tools, Home Well & Tap Use

VARIFY 7 In 1 Multi-Parameter Pool & Spa Water Testing Strips Kit - 7 Key Checks in 1 Kit, Pool Maintenance, 30s Color Read, Double Seal, Freshseal Helps Preserve Accuracy, pH+Alk, Hardness, Chlorine, Bromine, Cyanuric Acid (150 Strips)

Varify Water Hardness Test Kit - 150 Hard Water Test Strips for Home, Drinking, Well, Spa, Swimming Pool, Softener, Dishwasher & More (0-425 ppm)