AquaChek - Test Strips Yellow 4-in-1 (50 strips) - 0180556

AquaChek – Test Strips Yellow 4-in-1

Four critical water-quality parameters — free chlorine (0–10 ppm), pH (6.2–8.4), total alkalinity (0–240 ppm), and cyanuric acid / stabiliser (0–300 ppm) — are measured in a single dip, making the AquaChek Yellow 4-in-1 the go-to routine testing solution for any chlorine-treated pool or spa. Each bottle contains 50 strips, enough to cover a full swimming season when testing twice weekly as recommended. Results are readable within 15 seconds of dipping, with no reagents, droppers, or mixing required.

What each pad measures

The four colour-coded pads on every strip cover the most important daily balance indicators for chlorine pools. The free chlorine pad confirms your sanitiser is within a safe active range, while the cyanuric acid pad is particularly valuable for outdoor pools where UV exposure steadily depletes stabiliser levels. pH and total alkalinity readings together tell you whether your water is correctly buffered — preventing both equipment corrosion and skin irritation — so a single test gives a complete picture of water balance.

Ease of use & storage

The flip-top cap dispenses one strip at a time with no risk of contaminating the remaining strips. Dip the strip for one second, remove it, hold it level for 15 seconds, then compare the pads to the colour chart printed on the bottle. Instructions are included in 15 languages, making the strips well suited to European pool owners and professional installers working across multiple markets. Store the sealed bottle in a cool, dry place away from sunlight; strips carry an 18-month shelf life from manufacture date.

Suitable applications

Recommended for chlorine-treated swimming pools of any size and for hot tub or spa use. Professional pool technicians will appreciate the consistent, repeatable colour matching across the 50-strip bottle, while residential owners benefit from the straightforward dip-and-read process that requires no prior chemistry knowledge.