Grower's Edge 6" Block Covers - 40 / packFor blocks of rockwool and other grow media. Grower's Edge Block Covers block light from mediawhich helps reduce algae. Use white side up to reflect light. Use toothpick to hold cover in place. Hole in center of cover measures 1 2 inch in diameter.

Weight: 26

1 x 1L Nature's Candy

BTK is highly specific to some kinds of caterpillars

Safe for use on food crops

Size: 10” x 20

Re-Entry Interval if used indoors: 12 hours - Pre-Harvest Interval: 0 days

replaceable double junction pH probe and temperature probe (for pH ATC)

These lamps are designed for growing applications

6400K / 13W / 900 Lumens

now with enhanced lemon flavor

Industrial exterior zippers design ensures safe use and easy set up

Non-insulated flexible duct 6" ducting