Grotek Cal-Max Size:4L Balanced 3000° Kelvin Spectrum: Ideal

Balanced 3000° Kelvin Spectrum: Ideal for all growth stages

Both sizes are 150mm/6″ High and provide ample volume for drainage and controlled medium flushing

If you are using a Hortitek Deep Bowl Reflector or a Chinaman’s Hat reflector

Powerful Performance: With a 20 Watt motor

- Stronger and bulkier plant mass

Grotek Cal-Max Size:4L Balanced 3000° Kelvin Spectrum: IdealGROTEK CAL MAX Provides added calcium, magnesium and iron NPK: 2 0 0 Cal Max was developed to provide the additional calcium, magnesium and iron needed to support peak production in hydroponic growing. Cal Max can be used to treat problems when they surface and it can also be used as a preventative supplement to your nutrient program to avoid deficiencies such as tip burn in lettuce and blossom end rot in tomatoes. Works to charge soilless media and