ECOS Pro Heavy-Duty Whiteboard Cleaner, 1 Gal., Will clean dry-erase marker ghosting and residue from any whiteboard, marker board, dry-erase board, dry-wipe board or pen-board. Restores whiteboard surface to like-new condition, without affecting surface for future use. Readily biodegradable, pH balanced formula is made using sustainable, plant-derived surfactants. Product is free of dyes, greywater and septic safe. Recognized by the EPAs Safer Choice (DfE) and USDAs BioPreferred Program.