ECOS Pro Glass Cleaner Lavender 1:128 Concentrate, 1 Gal., Our exciting glass cleaners clean windows, glass and mirrors without leaving film, streaks or hazing behind. Pleasant and soothing Lavender formulation. Free of ammonia and dries fast. Readily biodegradable, pH balanced formulas are made using sustainable, plant-derived surfactants. Products are free of dyes, greywater and septic safe. Recognized by the EPAs Safer Choice (DfE) and USDAs BioPreferred Program. Use 1:128 dilution for optimal glass and mirror cleaning. Use 1:64 dilution for heavily soiled windows, glass and mirrors. Apply a second application using 1:128 dilution for a spotless finish.