GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) floating row cover Beneficial microorganisms help create favorable

Beneficial microorganisms help create favorable conditions for nutrient interaction within the root zone

Stay carefree with the curved-edge design which perfectly fits into the MBS sensors and is tightly locked

Provides 24/7 protection for you and your staff against oxygen deficiency

hydroponic reservoir and fertigation programs without leaving residue

and listed CFM performance

GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) floating row cover Beneficial microorganisms help create favorableHI70004G is a high quality pH 4. 01 calibration buffer designed with hydroponics, aquaponics, and greenhouses in mind. Single use sachets are highly portable, with a small footprint and a lightweight design. They are the perfect accessory for your on the go testing, fitting easily into your pocket or carrying case. Supplied with Certificate of Analysis Single use sachets for convenience. Perfect for use with GroLine testers and portable meters!