AGUALEVE Water hardness test - total hardness quickly and easily measure - 80 to 180 measurements, depending on hardness (2 x 15 ml)

AGUALEVE Water Hardness Test (in degrees of German hardness, °dH) - up to 100 Applications

Water Testing Kits for Drinking Water 50pcs 16 in1 Drinking Water Test Strips Kit PH Manganese Nitrate Iron Nitrite Copper Mercury and More Ferrous Hardness Lead More Home Water Test Kit

TESPERT Water Testing Kits for Drinking Water 125 Strips - 16 in 1 Drinking Water Test Kit - Water Test Strips with Hardness, Lead, Iron, Copper