Hydrion Regular pH Strips, Wide Range, pH 1-12

Range: 1.0 to 12.0 Size: 1/4 x 2" Strip Quantity: 100 strips per vial; 10 vials per package Not for measuring the pH of natural waters, such as streams, rivers and lakes. To measure pH in these waters, try our Water Chemistry Test Strip, pH 6-9, item 652729 or, for a wider pH range, our LaMotte Water test kit, item 652927, pH 3.0-10.5.