Marimex 4-in-1 test strips for pool and hot tub (50 pcs)

The Marimex 4-in-1 strip tester is a practical tool for anyone who wants to keep pool or hot tub water in good condition over the long term. With a single test you check four key values – making it easy to adjust pool chemicals so the water stays clean and safe.

What you measure with one strip (4-in-1):

• Free chlorine
• pH
• Total alkalinity
• Water stability / stabilizer (cyanuric acid)

How to use (3 steps):

1. Dip the strip into the water and remove it immediately.
2. Hold the strip horizontally for 15 seconds (do not shake off excess water).
3. Compare the pad colors with the chart on the label (in order: free chlorine, pH, total alkalinity, stabilizer).

Read the correct values after 15 seconds; do not compare results after a longer time. To verify measured values, it is recommended to also use a drop tester about once every 14 days. Ideally, test at least twice a week. When not using the tester, tighten the cap firmly and follow the expiry date stated on the cap.