SIMPLE GREEN PRO-GRADE 4.0L HEAVY DUTY CLEANER CONCENTRATE CONCENTRATED CONTRACTOR STRENGTH CLEANING Zero residue and low-foaming formula assures no damage to the integrity of structures or finishes. Leaves a clean surface ready for further work (reassembly) waxing painting plating etc.) Non-toxic non-corrosive developed for multi-purpose contractor applications. Compatible with oil/water separator technology for ease of disposal. Helps eliminate the problems of oxidation and rust at dilutions of 1:13 or stronger. ¥ General Cleaning: floors painted surfaces aluminum stainless or polished steel chrome plastics vinyl canvas cabinets counters stove tops refrigerators sinks showers tile and more. ¥ Heavy-Duty Cleaning: engines wheels tools heavy equipment landscaping equipment bumpers grease & oil stains exteriors of cars trucks vans RVs and boats; on BBQs ovens grills range hoods and vents machinery and more.