Bluelab pH 4.0 Calibration Solution 250 ml (6/Cs) Silica Blast reinforces and enhances

Silica Blast reinforces and enhances plant tissues leading to bigger harvests

0 first (buffer) then to pH 4

the Bluelab Truncheon® Nutrient Meter has proven itself as the world's favorite nutrient meter

Max-Duct is the strongest duct on the market and with a cost similar to the leading competitors' 3 ply ducting

Bluelab pH 4.0 Calibration Solution 250 ml (6/Cs) Silica Blast reinforces and enhancespH measuring equipment must be cleaned and calibrated regularly to ensure they are giving the user accurate readings. pH instruments are calibrated to pH 7. 0 first (buffer) then to pH 4. 0 (slope). Calibration Solution should be stored in a cool place out of direct sun and heat. They should be stored with the lids securely tightened.""