Bluelab Ph-4 Buffer Solution (250, or 500mLs) research the Focus Range delivers a

the Focus Range delivers a complete profile of all 12 essential minerals to plants

Left - Right Rotation

combining durability

200mm x 600mm (8")

allows for luxury uptake of weight producing potassium

Bluelab Ph-4 Buffer Solution (250, or 500mLs) research the Focus Range delivers aBluelab Ph 4 Buffer Solution Bluelab Ph 4 Buffer Solution is used to calibrate the pH levels of your plants and make sure your Bluelab equipment is working correctly. The solution helps keep your Bluelab products accurate and last longer by referencing to high laboratory standards. It's important to calibrate and clean your pH measuring equipment at least once a month to get the most accurate readings. The calibration process involves setting the