The AquaChek Chlorine 4-in-1 + ShockChek test kit helps prevent time consuming and costly cloudy water and algae events - so you can spend more time enjoying your pool or spa and less time maintaining it. This test kit covers the essential chemistries for maintaining balanced water and provides an easy-to-read test that tells you when to shock the water.

Tests for 4 important chemistries plus shock in seconds: Free Chlorine, pH, Total Alkalinity and Cyanuric Acid (Stabilizer). Note: these test strips have passed their expiry date. All sales are final.

User friendly easy-grip bottle with flip-top strip dispenser cap. Includes water chemistry insert and directions in 15 languages: English, French, Spanish, Italian, Czech, Danish, Dutch, German, Greek, Hungarian, Polish, Portuguese, Russian, Swedish and Turkish.

Each blister pack kit includes 50 chlorine 4-in-1 test strips and 10 shock test strips.