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STYROFOAM Dow SM Insulation Panel - Type 4 - Extruded Polystyrene - 8-ft x 2-ft x 1 1/2-in 13000002 | RONA
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Owens Corning 2-in x 4-ft x 8-ft Extruded Polystyrene Board Insulation in the Insulation & Accessories department at Lowes.com
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