Release the power of JAWS to clean glass & other hard surfaces, then refill & reuse. This safe, economical, ecological, efficient system only requires water to deliver the power of cleaning right at your faucet. With the Just Add Water System, no special equipment is necessary. The portable JAWS cartridge automatically delivers the precise amount of concentrate. Fill your work bottle with water, insert the JAWS cartridge & attach the trigger sprayer. It's that simple, safe & economical. No unnecessary shipping of water & throwing away plastic bottles. With an ammonia-free, alcohol-free & no-streak formula, Glass & Hard Surface Cleaner cleans fingerprints, grease & smudges from appliances, computer monitors, Lexan & Lucite, mirrors, plexiglas, windows, granite countertops, LCD TV Screens & more. The Just Add Water Cleaning Kit comes with everything you need, including six reusable / refillable spray bottles & 12 cleaning cartridges.