Active Aqua Air Stone, 6" (15 cm), case of 12 drying-racks high-performance expandable pot system built

high-performance expandable pot system built for serious growers

A flexible hose protector is also included to allow the hose to bend at sharp angles while still delivering your filtered water unhindered

and 20 pcs of the 25 packs)

Designed for simplicity of use in taking rapid light measurements

Active Aqua Air Stone, 6" (15 cm), case of 12 drying-racks high-performance expandable pot system builtDescription Active Aqua Air Stones: These are an excellent choice to infuse oxygen into your hydroponic growth system. The unique micropore design energizes the entire growth process as it aerates and circulates nutrients. By choosing to use air stones, you can extend the life of your nutrient solution, keep the roots healthy, and foster exceptional growth. Versatile in Sizes: These air stones come in three convenient sizes from which you can choose.