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Callibration Fluid  1 litre
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Callibration Fluid 1 litre

£9.00
Conductivity standard of 2.76ms used to calibrate EC meters.
Callibration Fluid  250ml
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Callibration Fluid 250ml

£2.50
Conductivity standard of 2.76ms used to calibrate EC meters.
Ph Buffer 4 1 litre
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Ph Buffer 4 1 litre

£9.00
Necessary to calibrate Ph meters. First adjust your Ph pen to the buffer 7, then to the buffer 4. When
Ph Buffer 4 250ml
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Ph Buffer 4 250ml

£2.50
Necessary to calibrate Ph meters. First adjust your Ph pen to the buffer 7, then to the buffer 4. When
Ph Buffer 7  1 litre
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Ph Buffer 7 1 litre

£9.00
Necessary to calibrate Ph meters. First adjust your Ph pen to the buffer 7, then to the buffer 4. When
Ph Buffer 7  250ml
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Ph Buffer 7 250ml

£2.50
Necessary to calibrate Ph meters. First adjust your Ph pen to the buffer 7, then to the buffer 4. When