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 Slabs – The final stage of planting with growing blocks are the Grodan slabs. These slabs come in clearly marked UV resistant poly sleeves for ease of use. Recommended for larger, long term crops with extensive roots like peppers, tomatoes, or cucumbers. Typically, seedlings in blocks are placed onto slabs. Grodan Expert is the slab that drains the fastest because of its vertical fibers. By far the most popular slab for the hydroponic hobbyist market. Grodan Master is a special wet/dry slab. The top layer is thicker, which stays wetter, while the bottom layer stays drier. In effect it defies gravity, allowing more even distribution of moisture throughout the slab.
• Fully heat-treated, forged steel alloy construction blade designed for easy cutting up to 3/4 inch diameter
• Slant-ground, narrow-profile hook
• Sap groove keeps blades from sticking
![Gavita Classic 277V-347V Wieland Cordset 6 ft 6 in [Ships To Eastern States Only] CB6883156](https://www.horticulturesource.com/fresh/wp-content/uploads/2019/07/CB6883156-01.jpg?x10805 "Gavita Classic 277V-347V Wieland Cordset 6 ft 6 in [Ships To Eastern States Only] CB6883156")
Gavita Wieland Mains Power Cords
Optional power cord for Gavita fixtures 277 volts and higher. This pigtail power cord can be hardwired and can be disconnected by a fixture side IP68 Wieland RST plug. Choose from 3 ft 3 in/1 m, 6 ft 6 in/2 m or 10 ft/3 m in length.
![Hurricane Classic Oscillating Wall Mount Fan 16 in [Ships To Eastern States Only] *CLOSEOUT* 736503](https://www.horticulturesource.com/fresh/wp-content/uploads/2019/07/HGC736503-01.jpg?x10805 "Hurricane Classic Oscillating Wall Mount Fan 16 in [Ships To Eastern States Only] *CLOSEOUT* 736503")
Hurricane® Classic Oscillating Wall Mount Fan 16 in
Classic series 16 in oscillating wall mount fan. This fan has 3 speed settings controlled by a turn switch. The fan has a 90° oscillation motion. There are two convenient pull cords for speed and oscillation control. It has a durable steel neck support with a 60 in power cord.
Technical Specs
Air Flow (CFM) – High
2118
NEMA Plug Configuration
115-P
Procision Classic is the traditional professional mix that is a reliably consistent media with excellent drainage characteristics without lots of added nutrients. This approach lets the gardener control inputs: either by heavy feeding, utilizing the mix in a quasi-hydroponic approach or as a base mix to be amended with the particulars of a grower’s input program. Composed of coarse sphagnum peat, perlite, dolomitic and calcitic lime and a wetting agent.
Gro-Slabs provide the final stage for growing a spectacularly large plant. Transplant your Gro-Block plant onto a slab just like professional growers. They come in clearly marked biodegradable UV-resistant sleeves for comfortable handling and algae prevention. With the Uni-Slab, all plant roots are protected and contained for the life of the plant. Due to its size, the Uni-Slab is perfect for one large plant. Uni-Slab has the benefits of a slab with the versatility of a block. All Gro-Slabs have vertical fibers except the 12 in Gro-Slab, which has horizontal fibers.
The new EZ-Clone® Classic 9 has been made from fully recyclable HDPE which highly chemically resistant and extremely durable. Now has leak resistant cord outlet that allows for multiple cords. Also has a specially designed recessed drain that allows for high protection and easy draining. These are just some of the 75 plus improvements designed specifically to make cloning even easier. Choose from white or black units.
The new EZ-Clone® Classic 9 has been made from fully recyclable HDPE which highly chemically resistant and extremely durable. Now has leak resistant cord outlet that allows for multiple cords. Also has a specially designed recessed drain that allows for high protection and easy draining. These are just some of the 75 plus improvements designed specifically to make cloning even easier. Choose from white or black units.
GroVision® High Performance Shades® – Classic
GroVision® ‘Classic’ High Performance Shades® feature color balancing polycarbonate lenses which are excellent for use in all grow room applications. The classic wayfarer style shades are suitable for both indoor and outdoor gardening. They feature scratch resistant polycarbonate lenses with full UV protection which meet ANSI Z87.1 American National Standards. The full black frames are fitted with special, high-tech blue lenses that are optimized for use in HPS lighting. Includes a microfiber draw string bag for cleaning and storage. The GroVision® ‘Classic’ High Performance Shades® feature a full color retail display box.
Professional 1000 watt high frequency electronic ballast. Including high efficiency Miro aluminum horticultural HortiStar HR96 reflector (95% efficiency). Includes 1000 watt double-ended EL lamp. Microprocessor controlled with electronic safety circuit. Very low heat dissipation and very low weight. Only suitable for use with 1000 watt double-ended EL lamps. No acoustic resonance, more than 10% grow light compared to traditional lamps and light maintenance after 5000 hrs >95%. Electronics by Gavita. Driver efficiency >95%. Sealed housing with Gore-Tex ventilation plug. Reflector is easily replaceable. These are packaged bulk for commercial applications and sold in increments of 70 (1/2 pallet). 1 year warranty on the lamp. Customer must select cord and mounting options.
