[8   w  &  tape seal]

The Marathon Aluminator Retrofit Roof Drain is an all aluminum retrofit roof drain for quick and easy installation. It is constructed of heavy gauge spun aluminum. The Aluminator also includes a strong mechanical ProSeal to prevent water backflow issues. The Marathon Aluminator Retrofit Roof Drain is available in 2” with tape seal, 3”, 4”, 5”, and 6”. The three bolt aluminum strainer measures 10” in diameter and is 6” tall. It also features a heavy duty aluminum ring that is 1 1/4” tall with twelve scallops to maximize drainage.