AQUACHEK 4-In-1 Yellow Chlorine Test Strip 50 Strips per Bottle
Product Overview
Four core chemistry readings in fifteen seconds from a single dip test.
AquaChek Yellow test strips (item 1242BLBF 7/20) provide a fast and reliable solution for maintaining balanced and safe pool and spa water. Each strip measures free chlorine, pH, total alkalinity, and cyanuric acid (also called stabilizer) to keep your sanitizer working efficiently without liquid reagents. With 50 test strips per moisture-sealed bottle, chemistry checks take seconds without test tube vials or dropper bottles.
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Benefits & What Makes It Different
Four Essential Readings
Tracks free chlorine, pH, total alkalinity, and cyanuric acid stabilizer levels on separate reagent pads.
15-Second Direct Readout
Dip once into the pool, hold horizontally for 15 seconds, and compare pad colors directly to the bottle chart.
Moisture-Locked Storage
The desiccant-lined bottle preserves pad sensitivity for up to six months after opening when stored dry.
Compatibility
- Chlorine-sanitized residential inground and above-ground swimming pools
- Chlorine and bromine residential hot tubs and spas
- Not calibrated for biguanide (Baquacil) or saltwater salinity ppm testing
When To Use This
Pro Tip
Hold the strip completely flat with the pads facing up after dipping; holding it vertically causes reagent colors to run into neighboring pads and distort your readings.
Common Questions & Instructions
How often should I test my pool with AquaChek 4-in-1 Yellow test strips?
Test your pool or spa water at least twice per week during active swimming season, and after heavy rainstorms or bather loads, to ensure sanitizer and pH remain within balance.
How many bottles of AquaChek Yellow test strips do I need per season?
A single 50-strip bottle lasts about 25 weeks when testing twice weekly, meaning one bottle covers a typical swimming season; active year-round pools generally require two bottles.
How can I tell if my AquaChek test strips have gone bad?
Strips should be replaced if they exceed their expiration date, have been open longer than six months, or if un-dipped reagent pads appear discolored due to moisture exposure.
Delivered today to your DFW neighborhood
Order this item by 2 PM Central on a weekday, and we'll have it on your driveway by evening. Same-day delivery is FREE to every ZIP in our DFW coverage area — no minimum — or it's free with our weekly service plan.
