Master A & B Kit

box-kit---2part-premiumProduct Information


Kit contains the Following:
Master A  – 32oz.
Master B  – 32oz.
Ginormous –  32oz.
Calyx Magnum –  32oz.


Humboldt Nutrients Master A&B is a premium two-part fertilizer program designed for all plants and made with high quality  mineral ingredients.

Our Premium 2-Part Basic Starter Kit provides the base nutrients in our Master A&B, along with Ginormous(Bloom Supplement) and Calyx Magnum(Cal/Mag Supplement).


Find out more about the products used in this Feeding Schedule: