Nitrate/Nitrate Water Test Strips - Garden Pools & Bridges

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Water test strips are ideal for testing water quality in the field. They are not intended to replace expensive laboratory tests, but will give a clear indication of the state of the water and whether further testing is necessary. Simply dip the test strip into the water and match the colour against the chart provided. Tests NO3 and NO2, 30 strips, 7 steps, ranges 0-20 and 0-10.0

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Fisher Pen Fine Green - Fine point, green ink

Romer & Linear Scale Card - Handy romer and linear scales on clear plastic sheet. Scales for 1:25 000, 1:50 000 and 1:63360, plus conversion from/to miles and kilometers. Card 13 x 8.5cm

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