pH Paper, Jumbo Refill, pH 0-13

pH Paper, Jumbo Refill, Length 50', Width 1/2 In, Range 0.0 - 13.0 pH, Number of Tests 300 pH Test Pencils, Strips, Paper, and Kit9L411, pH Pencil, gives 30-sec. color match of acid or alkali residue on paper, lumber, concrete, cement, plasterboard, painted and prepainted surfaces, textile, ceramics, and skin. Pkg. of 3. 8ZDP7, pH Sticks, give quick 1-dip single-color match for each pH value. Extra long and wide for ease of use when wearing gloves. Pkg. of 25.