DampRid® Refillable Moisture Absorber, Solid Form, Odor/Scent: Pure Linen, White, 11 oz Net Content, Tub Container, 250 sq-ft Protected Area, 45 days Lasts Up to, Additional Information: 80 to 100% Calcium Chloride, 1 to 5% Sodium Chloride, 1 to 5% Potassium Chloride Composition, 2.15 Specific Gravity, 15.4 lb/gal Density