Air Stone Round - 4" - #18658

Curtis Country Store, LLC Verified independent store

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The Hydrofarm® Active Aqua Air Stone - 4in Round - is a great way to add oxygen to your hydroponic growing system. The micro-pore design energizes your growing solution as it aerat es and circulates your nutrients. It will extend the life of your nutrient solutions, help keep your roots healthy and promote exceptional growth. Round Air Stone3 Suction CupsActive Aqua 6/17/25 Show more