Hydrion Short Range 0.0-13 pH Inst-Chek Dispenser 

Hydrion short range "S/R" Inst-Chek pH paper is the ultimate easy to use general purpose pH paper to check pH from 0.0 to 13.0. It offers a distinct color match at each full pH unit from 0.0-13.0. Great for testing incremental pH changes. 

Each kit consists of a 15-foot roll of test paper and matching color chart and provides enough paper for approximately 100 tests. A carton of 10 provides approximately 1,000 tests! Buy in bulk and SAVE!

So easy to use. Just tear off a small strip of the pH paper, dip it in to the solution being tested and then compare the resulting color with the matching pH color chart.

Also identified, known as the "Hydrion S/R Inst-Chek Disp 0.0-13.0"