For cultivation, our Five-Gallon-Lid with a patent-pending one-way valve is an advance in grow techniques. Clip-down and airtight, HerbSafe Five-Gallon-Lid eliminates the need to “burp” large containers, as it does the job efficiently on its own. HerbSafe Five-Gallon-Lid, only, adds a technological and time-saving method for large grow facilities. Our patent-pending valve creates an aeration system which opens to release CO2 as the air pressure rises, and closes to eliminate entry of other gases. Fits 3.5 to 7 gallon buckets (not sold). Five-Gallon-Lid, $49.99 Retail (Click here for Wholesale Orders!)
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