Rockwool Block Cover 4" (40 Pk)

Rockwool Block Cover 4" (40 Pk)

4" Square Grow Lids Dual Sided Black / White Grodan Rockwool Block Covers, 40 Pack Dual-sided 5.5mil grow lids have a white face to reflect light back to the plants and a black side to block light Helps with algae, mildew and pest control...Read more

Title
+ -
  • master
  • paypal
  • visa
Description
  • 4" Square Grow Lids Dual Sided Black / White Grodan Rockwool Block Covers, 40 Pack
  • Dual-sided 5.5mil grow lids have a white face to reflect light back to the plants and a black side to block light
  • Helps with algae, mildew and pest control
What Our Customers Are Saying

We Also Recommend

Title

Quick View

Using Net Pots allows the roots to grow through the mesh for better breathing and growth. Plants ...
3.5" Net Pot - w/tab. (square hole)

3.5" Net Pot - w/tab. (square hole)

$0.54
Title

Quick View
3/4" Elbow Connector

3/4" Elbow Connector

$0.75
Title

Quick View
3/4" Stopper

3/4" Stopper

$0.80
Title

Quick View
3/4" Top Hat Grommet (19mm)

3/4" Top Hat Grommet (19mm)

$0.75
Sold Out

Quick View
4" Bug Shield

4" Bug Shield

$11.93
Title

Quick View
4" Y Duct Connect - Thermoflo

4" Y Duct Connect - Thermoflo

$19.93