MIFAB® F1100-C-RS Series lacquered cast iron floor drain with anchor flange, cast iron membrane clamp ring with primary and secondary weepholes for waterproofing membrane, and “RS” (specify size) rectangular (specify material finish) strainer. (For non-membrane floors, use MIFAB F1100-RS Series.) Please note 5”x17” sized strainer available in stainless steel only. For RS48, grate style is different compared to larger model.