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O-Ring Drains

OMG O-Ring RetroDrains are designed for use in existing drain leaders smaller than 3-inches and larger than 6-inches. These drains feature four rubber O-rings to make a watertight seal. It’s available with a U-Flow cast aluminum strainer dome and aluminum clamping ring. The most common sizes are the 2-inch and 8-inch, but other sizes available on a custom made basis.

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Features & Benefits

2-in. and 8-in. O-Ring RetroDrains have a one-piece, seamless body. This eliminates the possibility of leaks due to poor welds at the stem and flange connection.
Available with a U-Flow cast aluminum strainer dome. They can also be retrofitted with the yellow Vortex Breaker Strainer dome.
Saves time and money by allowing easy installation from the rooftop without disturbing occupants.

Product Use

O-Ring RetroDrains are designed to replace existing drains in re-roofing applications. Installed from the roof surface, the 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.

Technical Data

Drain Body (2-in.): 16 gauge (.064-in.) spun aluminum
Drain Body (8-in.): 11 gauge (.125-in.) spun aluminum
Seal: 2 rubber O-rings
Flange: 17 1/2-in. diameter
Strainer Dome: Cast aluminum
Stem: 12-in. length
Clamp Ring: Aluminum