P&G Professional Floor Cleaner from Mr. Clean Professional, Bulk Liquid Concentrate for Hardwood, Tile, or Terrazzo Floors, Commercial Use, Lemon Scent, 1 Gal. (Case of 3): Amazon.com: Industrial & Scientific
GoodHands Lemon Drops Scented Floor Cleaner Dissolving Tabs 48-Pack 16-oz Lemon Drops Liquid Floor Cleaner in the Floor Cleaners department at Lowes.com
Bona Machine Concentrate Refill for Hard-Surface Flooring, Lemon Mint Scent, 32 Fluid Ounces - Walmart.com