Pargro Quick Drain Jumbo Blocks, 6" x 6" x 4" (case of 36) Bio-Fertilizer PfrSpec targets far-red wavelengths for

PfrSpec targets far-red wavelengths for photoperiod control and stem elongation

The premium granules expand up to 7 times in volume when hydrated

AnthoSpec: 190 μmol/s

SNS-604A™ Vegetation Organic Growth Supplement Concentrate & SNS-604B™ Flowering Organic Growth Supplement Concentrate (512 to 1) - Grow Bigger

Perfect for holding one 2' x 2' tray

Pargro Quick Drain Jumbo Blocks, 6" x 6" x 4" (case of 36) Bio-Fertilizer PfrSpec targets far-red wavelengths forPargro 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