GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) spl_hf Do not use the vacuum

Do not use the vacuum bags in an oven or broiler

improved nutrient and water uptake

luxury vape battery with a built-in USB charger

preventing the development of mold and/or fungus often caused by stagnant water

GroLine pH 4.01 Buffer Sachets, 20 mL (25 pcs.) spl_hf Do not use the vacuumHI70004G 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!