Economical window and glass cleaner. Dilutes 1:20. One quart makes five gallons! Contains distilled vinegar for added cleaning. No butyl. No ammonia. Use with Spartan Accurate Measure Dispensing System (SAM). No rinsing required. No streaking. No filming. Pleasant floral fragrance. The Concentrated Window Cleaner formula is boosted with distilled vinegar, an organic acid. Fingerprints, smoke film, hard water spots and other soils are quickly and easily removed from glass and other hard, non-porous surfaces not affected by acid.