BLANCO joined DIFFA for a sixth year as a Specify with Care® partner. Each time BLANCO’S new QUATRUS® R15 ERGON is specified, BLANCO will make a donation to DIFFA. DIFFA’s vital mission is to battle AIDS and has become one of the largest funders of HIV/AIDS service and education in the U.S.” The QUATRUS R15 ERGON Apron Super Single sink refreshes the classic farm sink with a modernized look and functionality that meets the everyday needs of the most practical, yet beautiful kitchens. With a generous R15 radius, rear-positioned drain hole and a high ledge for custom accessories, the QUATRUS R15 ERGON offers users maximum workspace in, under and on top of the sink. Optional accessories include a grid, steel colander and wood cutting board – the QUATRUS R15 ERGON elevates a kitchen’s workspace and limits countertop clutter.