Carol Stream, Ill.-based Antunes Filtration Technologies, a division of A.J. Antunes & Co., has received NSF Standard 53 for its UFL line of water filtration systems. These systems utilize a patented, multi-bore, ultrafiltration membrane—the first of a new era of revolutionary products that provide the latest innovations in reusable surface filtration technology. The units require minimal pre-treatment, small installation space and use very little water for cleaning. Recovery ratios of 98 percent or more are typical.