Cultiwool Block 4''x 4''x 2.5'' (216/Case) gels & sprays the HI9812-51 is ideal for

the HI9812-51 is ideal for users who want accurate

or as a regular addition to a feeding program

Includes a wired 10-speed fan controller

and buildings

Cultiwool Block 4''x 4''x 2.5'' (216/Case) gels & sprays the HI9812-51 is ideal forCultiwool Block 4"x 4"x 2. 5" (216 Case) The Cultiwool Block 4"x 4"x 2. 5" is a professional quality stone wool growing block designed for hydroponic, greenhouse, and soilless growing applications. Its carefully engineered fibre structure provides an excellent balance between water retention and aeration, helping create a consistent root zone environment for vigorous root development and healthy plant growth. Ideal for transplanting established