Compare webshops (1)
Sponsored links · Some shops pay us a fee
Sort by:
Shops with other sizes
Total test time: 1 minute, number of tests: pack of 20 With their low cost and high accuracy, Simplex Health total hardness test strips also offer you time-savings 20 test strips per resealable pack, excellent value for money Sensitivity: 0, 50, 100, 250, 500, 1000 PPM (MG/L) or 0, 3, 6, 15, 29, 58 GPG