Expanded Horticultural Grade Coarse Perlite, 16 Dry Qt Deep Water Culture | DWC or follow the product label

or follow the product label for your specific crop and application method

and longer-lasting flowers

improved stress resistance

Use Cali Pro® Bloom A & B during flowering

and other high-test organic ingredients

Expanded Horticultural Grade Coarse Perlite, 16 Dry Qt Deep Water Culture | DWC or follow the product labelExpanded Coarse Grade Perlite Made from expanded volcanic rock, Expanded Perlite serves as a good growing medium for plants in containers and helps loosen heavy soils to improve outdoor gardens. Perlite provides superb aeration and retains moisture, whether used in hydroponic setups or mixed with other growing media. 16 Dry Qt bag size 18 Liters volume