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the water content of the block can be controlled with great precision
Derived from: Potassium Sulfate
conductivity (ppm) and temperature of the nutrient solution
Little Giant® 5-MSP Submersible Pumps
Super Sprouter® Double Thick 10 x 20 in tray with no holes and the Art of Propagation booklet with expert advice for starting seedlings and cuttings
Back Draft Dampers Apollo the water content of theBack Draft Dampers These are excellent quality back draft dampers. They are made from heavy gauge galvanized steel with heavy duty springs. They use both an embossed bead and rubber gasket to help keep ducting securely in place. They prevent back draft air when your fans are off.
