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MrCool DIY 4th Gen Air Handler for Quiet Room Climate
because eight liters of headspace needs the extra buffering
Stack several and mark the lids in non-permanent marker to keep batches straight
ensuring the perfect growing conditions at all times
Hydrofarm CO2 Regulator (0.2-2 cu ft / hr) with Timer Element Air MrCool DIY 4th Gen AirActive Air climate control products are available for a variety of indoor growing applications. Whether fans, CO2 systems, filters, or any other product in the line, they have all been custom engineered for hobby and commercial growers to provide both performance and value. With attractive color packaging that highlight each product's features, Active Air is the name you can trust for your climate control needs. Deliver growth boosting CO2 with our
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