MIFAB® Series RS (specify size) rectangular (specify material finish: -1 for nickel bronze or -3 for Type 304 heavy duty stainless steel) strainer except for the 5"x17" sized strainer which is available in stainless steel only. The 4″ x 8″ strainer has a different grate style from the larger models. All strainers are furnished standard with vandal resistant allen key screws.