• Pre-punched, .080-in. thick 8-in. x 8-in. aluminum drain flange.
• Strainer dome is constructed of .065-in. thick aluminum and is 8-in. in diameter.
• Includes a 6-in. diameter, .125-in. thick, low profile, aluminum clamping ring that provides a tight compression for terminating for the roof system.
• Patented RAC Backflow Compression Seal is quickly activated at drain flange level with a 7/16-in. wrench and protects the roof and building from water damage.
• Designed to accomodate tight field conditions.
• Saves time and money by allowing easy installation from the rooftop without disturbing occupants.

OlyFlow RetroDrains are designed to replace existing drains in reroofing applications. Installed from the roof surface, OlyFlow RetroDrains are engineered to be installed without removing the existing plumbing or fixture while providing a watertight connection to the roof system and the existing plumbing.

As with all building materials it is the responsibility of the installer to review its usage with a design professional to confirm safety, compatibility and acceptance with the roof cover manufacturer as well as local building codes.