UFRO is short for Ultrafiltration and Reverse Osmosis, a fine filter technique used to remove suspended matter, bacteria and fibres from water. Ultrafiltration serves as a pre-treatment step before Reverse Osmosis, which uses a semi-permeable membrane to further treat the water. In reverse osmosis, water is forced through a sieve with microscopic holes at high pressure levels.
Overall, UFRO results in safe, pure water and can result in substantial water savings. In addition, far less rinse water is pointlessly drained to the sewers, thus helping to protect the environment.