Universal pH Litmus Paper Roll 0 - 14 (5 meter)

5 out of 5 stars Saturday 28 January, 2017 By G Leach
I have compared this product to the test strips that you can get and it works just as well. However having used the strips for two months I now have a very good idea of Ph levels. I only have to use 20mm of strip to get a result which means you get 250 tests. Therefore it's a very good price for 250 tests. Very pleased overall.