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Nutri+ pH 4 Calibration Solution 4L fork Prevent double stacking of freight Width x Length (In Feet):2 x 3 ft Prevent double stacking of freight orders by strapping or taping down the cones to the top of the pallet to reduce damage to shipments A Vertical Farming Essential These calibration solutions allow you to recalibrate a pH meter that is giving improper readings These solutions will have you calibrate your meter until it gives a reading of 4 or 7 that matches the bottle
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