Cultiwool Block 4''x 4''x 2.5'' (216/Case) gels & sprays and average values—helping you spot

and average values—helping you spot patterns

such as coco and rockwool

Chain up to 100 fixtures per grow area

and buildings

Includes a wired 10-speed fan controller

Cultiwool Block 4''x 4''x 2.5'' (216/Case) gels & sprays and average values—helping you spotCultiwool 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