Jack's Classic All Purpose 20-20-20 1.5lb fan The PH-80 has proven to

The PH-80 has proven to be the MOST reliable pH meter in its price range

READY TO USE - Use as is or mix with other media to create a more specialized mix for what you grow

fast-growing root systems

Provides constant optimum temperatures for specific crops

Instructions are included with each case

Jack's Classic All Purpose 20-20-20 1.5lb fan The PH-80 has proven toReleases nutrients gradually for up to 4 months of vigorous growth. Blended with an enhanced micronutrient package which provides optimal nutrition for strong roots and green foliage. Features the highest safety factor to prevent burning when applied as directed. Free measuring spoon enclosed for easy and precise application.