6in Rockwool Block Cover
PLASTIC BLOCK COVERS
Reflect light to plant leaves, where it’s needed most. Block light from media. Eliminate algae and mildew growth. 40 dual sided block covers per pack. Works great with GRODAN Blocks.
  • 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

Write a review

Please login or register to review

6in Rockwool Block Cover

  • Brand: Hydrofarm
  • Product Code: HGCOV6
  • Availability: In Stock
  • $21.95
  • $18.00
Bloom Khaos is Oregon's Only's secret weapon. This patent pending product aids in the production of ..
$240.00 $160.80

Mighty Kills ALL accessible stages of SPIDER MITES including EGGS. Mighty may be used on Fruits and..
$39.95 $32.76

Link4 iPonic Controllers are the latest in greenhouse environmental automation. Control and integrat..
$1,399.00 $1,147.18

With a DPC-8000 240 Volt lighting controller from Powerbox, you can control up to eight 1000 Watt li..
$399.95 $327.96

Roots Organics Potting SoilA truly exceptional ready-to-use coco fiber-based potting soil. We begin..
$554.67 $454.83

The RS Series Inline tube fan, durable powder coated steel housing, reverse curve impeller.The R..
$136.58 $112.00

Humboldt Nutrients Liquid Underground is a worm casting extract produced from the best worm castings..
$39.80 $26.67

Oakton® buffers for meters with 0.01 resolution are standardized against NIST-certified pH reference..
$18.99 $15.57

Using a timer to automate your lighting adds convenience and encourages productive growth with consi..
$25.95 $19.46

A popular leaf shine, Einstein Oil is a finest quality, first extraction, 100% cold-pressed neem oil..
$21.95 $18.00