Bona, 160 OZ, Hardwood Floor Cleaner Refill, Refills 36 OZ Spray Bottle, A Water Borne, Environmentally Responsible Cleaner Specifically Formulated To Clean All Polyurethane Finished Wood Floors & Factory Pre-Finished Wood Floors, Will Not Dull The Finish Or Leave Any Residue, Ph Balanced, Non-Toxic, Greenguard Certified.