Reduce moisture and eliminate odors with Star brite No Damp Moisture Absorber Dehumidifiers.Compared to ordinary household flakes, the marine-grade crystals that these dehumidifiers use come in pellet form, which absorbs more moisture and works longer to reduce humidity and eliminate odors. A tray within the bucket-style containers keeps the pellets above trapped moisture to dramatically improve performance. 12oz.size covers 900cu.ft. 36oz. container covers 1800cu.ft.Key FeaturesMarine-grade pellets absorb more moisture and work longer than household flakesInner tray keeps pellets above trapped moisture for improved performanceChoice of 12oz. or 36oz. bucket12oz. bucket treats spaces up to 900cu.ft.36oz. bucket treats spaces up to 1800cu.ft.Replacement crystals offered separately