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6 inch Rockwool Block Cover, pack of 40
Special Price $16.67 Regular Price $18.52
- Buy 30 for $16.09 each and save 3%
Our 6 inch Rockwool Block Cover's unique dual-sided design blocks light from the media to help prevent unwanted algae and mildew growth, while reflecting light to plant leaves where it's needed most. For use with all types of hydroponic systems, including NFT, drip systems and aeroponics.