Add to Cart Compare Quick view Mother Earth 8" Coco Covers, Pack of 10 Sunlight Supply MSRP: $8.70 Now: $7.49 Was: Mother Earth® Coco Covers are a naturally derived replacement for plastic covers. These 100% natural coconut coir fiber covers work great for preventing algae from growing on top of your rockwool blocks. Available in 4, 6 and 8 inch squares for use... MSRP: $8.70 Now: $7.49 Was: Add to Cart Compare Quick view Qty in Cart: 0 Quantity: Decrease Quantity: Increase Quantity: Price: MSRP: $8.70 Now: $7.49 Was: Subtotal: Add to Cart