Pargro Quick Drain Jumbo Blocks, 6" x 6" x 4" (case of 36) garden-accessories Increases Phosphorus uptake

Increases Phosphorus uptake

This design allows roots reaching towards the container wall to locate the air holes immediately

2 to 3 feeds per day are generally enough for 60/40

Combine multiple RAY44 units in a side-by-side array to achieve uniform coverage over a 4-foot growing area

square-wave digital ballast designed specifically for the 315W high intensity ceramic halide lamp

Pargro Quick Drain Jumbo Blocks, 6" x 6" x 4" (case of 36) garden-accessories Increases Phosphorus uptakePargro is the leader among affordable horticultural rockwool. Made right in the Grodan factory, so you can be assured of a high quality product at a great price. Drainage Driest value priced rockwool on the market 14% drier than competitor blocks Value Value pricedno frills saves you money Half case sizes in plain boxes Quality Cheap in price, but not in strength and uniformity Made under quality control at Grodan factories