HM Digital pH 4.0 Buffer Solution (20-20mL Packets) soil-compost To use simply sprinkle a

To use simply sprinkle a generous amount on top of each new layer you place in your composting bin

Its heavy-duty construction features aluminum flanges and dual-sided galvanized steel mesh with a rust-resistant gunmetal finish to stand up to corrosion and high humidity

(88) 660 nm OSRAM red diodes

Simply mix in 1-2 cups per Gallon of soil or medium

HM Digital pH 4.0 Buffer Solution (20-20mL Packets) soil-compost To use simply sprinkle aBoost your confidence in accurate pH testing with HM Digital pH 4. 0 Buffer Solution. Each convenient packet is pre measured for easy use and ensures precise results. Trust in this solution for reliable and consistent readings. Get your perfect pH balance today!