Water-ID - PoolLab Phenol Red pH Reagent Tablets - Pack of 100 - TbsPpH100

Water-ID – Phenol Red pH Test Tablets for PoolLab 1.0 – Pack of 100

These genuine Water-ID Phenol Red reagent tablets are the official consumable for measuring pH with the PoolLab 1.0 photometer. Each tablet dissolves rapidly in a water sample and produces a characteristic colour change that the photometer reads digitally, delivering accurate pH results across the range 6.5–8.4. The pack of 100 individually protected tablets provides an ample supply for a full season of professional-grade pool and spa testing.

Why pH measurement matters

pH is one of the most critical parameters in pool water management. Values below 7.0 can cause eye and skin irritation, corrode metal fittings, and promote the formation of chloramines, while values above 7.6 significantly reduce the effectiveness of chlorine disinfection and can lead to scale formation on surfaces and equipment. Keeping pH in the recommended range of 7.0–7.6 protects bathers, maximises sanitiser efficiency, and extends the life of pool materials.

Compatibility

These tablets are formulated and calibrated exclusively for use with the Water-ID PoolLab 1.0 photometer. Drop one tablet into the sample cuvette, fill to the mark with pool or spa water, allow it to dissolve with gentle agitation, and insert the cuvette into the photometer for an instant digital pH reading — no colour-matching or guesswork required.

Genuine Water-ID quality

Manufactured by Water-i.d. GmbH in Germany, these tablets offer photometer-grade precision with a two-year shelf life. Each tablet is blister-packed to protect against moisture and contamination, ensuring consistent, repeatable results from the first tablet to the last. Using genuine Water-ID reagents ensures the PoolLab 1.0 calibration remains valid and results remain traceable.