PH and EC control

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GT pH Probe Refill & Storage 300ml
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GT pH Probe Refill & Storage 300ml

£6.99
GT EC Standard (2.76) 300ml (Conductivity)
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GT EC Standard (2.76) 300ml (Conductivity)

£2.99
GT pH Buffer 7 Solution
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GT pH Buffer 7 Solution

Price range: £2.99 through £6.99
T.A. pH Test Kit
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T.A. pH Test Kit

Price range: £4.64 through £6.72
GT pH Up
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GT pH Up

Price range: £3.49 through £8.49
Biobizz Bio Up
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Biobizz Bio Up

Price range: £5.70 through £70.85
Veg Bloom PHLO (pH Down)
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Veg Bloom PHLO (pH Down)

Price range: £23.00 through £165.00
GT pH Down 1L (30%)
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GT pH Down 1L (30%)

Price range: £9.99 through £37.49
T.A. pH Down (GHE)
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T.A. pH Down (GHE)

Price range: £9.28 through £14.79