3.86 x 3.54 x 1.73 inches

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✅ RELAX INTO YOUR SOAK – These patented testing strips are designed specifically for chlorine-sanitized spas and hot tubs (calibrated to 100°F). Get a reliable, accurate reading in seconds and enjoy your next soak with loved ones, stress-free.
✅ FASTER & EASIER THAN LIQUID TESTING KITS – Strips are faster and simpler than liquid testing kits, with accuracy as good or better. Easily read your results with the clear color chart that won’t fade with time.