$11.93 (as of 09/03/2021 00:42 PST details )
Features:
- Simple, easy color match for all pH values
- 3109D15 Test Paper for replacement is furnished in package of 5 rolls
- A direct reading pH paper with the widest range available in a single paper color change for each 1.0 pH unit
- General purpose pH test paper containing two rolls 7 32 wide x 15 feet long