KELVIN® Classroom Hydroponics System™ "I found to my surprise that my students gained instant interest in the area of bio-technology by working with the KELVIN® Classroom Hydroponics System."-Paul Frascatore, P.S. 40, Jersey City, NJ "In our hydroponics area, the students have... MSRP: Was: Now: $495.00 Add to Cart
Rockwool, Cubes Rockwool growing medium can hold large amounts of nutrient solution and air for the best growth. Does not decompose. 1-1/2 x 1-1/2 in.Cubes, 98/pkg. MSRP: Was: Now: $13.95 Add to Cart
KELVIN® Introduction to Hydroponics Booklet This basic booklet explores hydroponics systems and techniques. Includes a timeline, background information, glossary and hands-on activities. Black and white illustrations. Booklet, 24 pages. MSRP: Was: Now: $5.95 Add to Cart
