Use this multiple test for an economical, practical and user friendly way of determining your water quality (25 strips per tube = 125 tests total).

Each strip contains 5 tests: pH, KH, GH, NO₂ and NO₃

• pH        6.4 - 8.4                    (KH>3°d)       
• KH        0 - 20° dH                         (0-356mg / I  CaCO3)
• GH        < 6 >7 >14 >21°dH     (0-374mg / I  CaCO3)     
• NO₂      0-50mg / l
• NO₃      0-500mg / l

Simply dip the strip in the water for 1 second, then leave for 1 minute for results to show!