This Square Retrofit Suction Outlet Cover is for retrofit only and does not include a mud frame. It easily and safely retrofits to most brands’ 1" deep 9" square existing frames. It is manufactured from superior UV-resistant engineered polymers. All components meet or exceed ANSI/APSP 16-2011 and NSF/ANSI 50-2009a national standards and ASTM G154 UV testing exposure.