Window cleaner concentrate is premeasured and super concentrated. Leaves hard surfaces free of streaks, soils, smudges, and grease, and is formulated without solvents, glycol ethers, or ammonia. Excellent performance on glass surfaces, windows, and mirrors. Mix each pack with 1 quart of cold water to make RTU window cleaner. Application: Windows Mirrors Applicable Material: Hard SurfacesGlassPlastics Chemical Compound: SurfactantComplexing Agent.STNST0840EST. ST0840EST. STEARNS PACKAGING CORPORATION STEARNS PACKAGING CORPORATION Window Cleaner Pre-Measured Concentrate.