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Gypsum, 2.5-Lb., Covers 400 Sq. Ft.
2.5 LB. 400 SQFT Coverage, Gypsum Plus Ast, High Quality Gypsum Combined With Patented Ast Polymer Formulation, Up To 8 Times Faster Than Typical Gypsum, Loosens Crusty Soil, Repairs Winter Salt Damage & Dog Spots, Designed For Garden Application, Bagged.