Grodan - Block Covers 4IN (714820)

Model: 714820
  • For blocks of rockwool and other grow media.
  • Blocks light from media— reducing algae and pest problems.
  • Use white side up to reflect light.
  • Use toothpick to hold cover in place.
  • Sold in pack quantities only.
Weight: 0.01 lb.
Dimensions: 5in. × 6in. × 0.25in.
List Price: $9.95
$8.46