Hydrofarm Rockwool Block Covers 4" Pack of 40 Cleanroom Supplies 75": Reduces taste

75": Reduces taste

TrolMaster MBS-TH: Replacement/Backup Temperature

- 1000w Metal halide bulb

Thickest 1680D Density Material: Provides exceptional durability and complete light blockage for optimal dark periods

5V DC dimming input/output

Hydrofarm Rockwool Block Covers 4" Pack of 40 Cleanroom Supplies 75": Reduces tasteDescription Product Details: Block light from media Reflect light to plant leaves where it's needed most Eliminate algae and mildew growth 40 dual sided block covers per pack Specifications Barcodes: 10638104945780 (GTIN) 638104945783 (UPC A) Dimensions: 5. 4L x 5. 2W x 5. 6H (CS) 5. 5L x 4. 5W x 0. 3H (EA) Shipping Weight: 0. 16 lbs.