SimplexHealth Total Hardness Water Test Strips (50 Strips) by Amazon.co.uk

• Total Test Time: 3 Seconds. Number of Tests: Bottle of 50.

• With their low cost and high accuracy, Simplex Health Total Hardness test strips also offer you time-savings.

• 50 Test Strips per container. Excellent value for money.

• Sensitivity: 0, 40, 80, 120, 180, 250, 425, 1000 ppm (mg/L) Or 0, 2, 5, 7, 11, 15, 25, 58 gpg

• A must have test for every home.