pH 4.01 Calibration Solution 500 ml Vapour Station Sustainable and reusable

Sustainable and reusable

What’s Included

Lightly fertilised for the entire first week – no immediate feeding needed

Versatile mounting – hang on trees/terraces or attach to railings/poles

pH 4.01 Calibration Solution 500 ml Vapour Station Sustainable and reusableUnlock Your Pot tential with pH 4. 01 Calibration Solution 500 ml Low pH calibration is essential for South African hydroponic, coco, soil and fertigation growers acidic nutrients, organic amendments or drift in recirculating systems can push readings below 5. 5, locking out iron, manganese, phosphorus and zinc before visible tip burn or chlorosis appears. The pH 4. 01 Calibration Solution 500 ml provides a generous, NIST traceable buffer (exactly 4.