Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. Grodan Blocks -Grodan Delta blocks are the mo...

Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant stages. Grodan has a tremendous capacity for absorbing nutrient solution while retaining plenty of oxygen for rapid plant growth. Grodan comes in graduated sizes. Seedlings started in cubes are easily transferred to blocks and then onto slabs, if desired. Seedlings or cuttings started in the Grodan cubes can also be transplanted into more traditional planters and growing mediums. Grodan Blocks -Grodan Delta blocks are the most u...

Most air filters utilize 65% of the carbon available by only filtering through the top section of the carbon filter, leaving the bottom section unused. PROfilter uses an innovative patented design allowing the user to reverse the filter, benefitting from the use of 100% of the carbon available and effectively extending the units’ life span. Manufactured with only the finest TC940 virgin 4mm grain sized carbon, PROfilter effectively removes 99.5% of odors. Rated for a continuous worry-free operation and available in seven different sizes and CFM ratings, PROfilter can be used for commercial or residential applications. •CFM: 900 •Flange: 6" or 8" •Outside Diameter: 15" •Height: 40" •Flange kit and cap sold separately...

Offers serious air power with quiet operation. It features sealed air/water tight housing, flexible mounting brackes and a 10' power cord. Special rubber gaskets and nuts reduce vibration. It also features a thermally protected auto reset and the unit is UV protected....

Vortex Powerfans are high performance inline duct blowers constructed from quality steel with heavy duty attractive hammertone powdered coat finish. The extended collar allows for easy duct installation and taping. Superior quality and smart design ensure vibration-free operation with balanced motorized impellers with permanently lubricated ball bearings. Include 6' power cords, and galvanized mounting brackets allowing both horizontal and vertical installation. Atmosphere's V-Series combines high performance and quiet operation. These fans are equipped with a mixed-flow impeller allowing more air volume than any other comparable impeller design. Furthermore, the V-Series fans operate at lower RPM (1500 to 1700) making them even quieter. These fans are available in 12" d...