Hanna 1500 ppm@25C Calibration Solution, 20 ml, case of 25 cloning-and-seed-starting the flaps close onto a

the flaps close onto a perimeter gasket

This professional grade mycorrhizal inoculant intentionally does not include other microorganisms

or wasting valuable electronic resources running cooling fans or other unwanted devices

The species of microorganisms in this product are specifically selected for fruiting and flowering plants with a tolerance to heavy fertilizing

Coco-Wet's nonionic formulation makes it compatible with all nutrient sprays

Hanna 1500 ppm@25C Calibration Solution, 20 ml, case of 25 cloning-and-seed-starting the flaps close onto aHanna Instruments' calibration solution, ideal for gardening, laboratory work, and field experiments. Comes in a package designed to keep air and light from damaging the solution.