Zep Commercial® Z-Verdant Concentrate, 1 gal Bottle, 4/Carton (ZPE1041484) Case of 4A real "workhorse" cleaner and degreaser, this solution contains no harsh solvents or chemicals. That means you can confidently use it for a wide variety of tasks without worrying about harmful effects on the surface or on the people using it. Effective on a variety of soils, it's great for daily cleaning and maintenance operations.