Hanna HI70007G pH 7.01 Calibration Buffer - GroLine Sachets (25 x 20mL) tactical hydration pack External Tube connection: 6 mm

External Tube connection: 6 mm

Traps large air allergens particles like hair

and a durable stainless steel stand—everything you need for long-term water purification without electricity or plumbing

Up to 1 year

Hanna HI70007G pH 7.01 Calibration Buffer - GroLine Sachets (25 x 20mL) tactical hydration pack External Tube connection: 6 mmHanna HI70007G pH 7. 01 Calibration Buffer Professional GroLine Sachets The Hanna HI70007G pH 7. 01 Calibration Buffer is a high precision, NIST traceable calibration standard designed specifically for hydroponics, aquaponics, greenhouses, and water quality testing applications. Each box contains 25 individually sealed 20mL sachets that deliver fresh, uncontaminated pH 7. 01 buffer solution every time, ensuring optimal meter accuracy and reliable