Amazon
25 strips per pack TRIAL PACK Super sensitive and accurate and wide range of 4.5 - 9.0 15 second results. 0.25 increments between pH 5.5 and 7.5 ( Others 0.5 increments) Easier to read than pH paper. No bleeding, no mess. Economical
25 strips per pack TRIAL PACK Super sensitive and accurate and wide range of 4.5 - 9.0 15 second results. 0.25 increments between pH 5.5 and 7.5 ( Others 0.5 increments) Easier to read than pH paper. No bleeding, no mess. Economical