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  • Separate Parapet Overflow Separate Parapet Overflow

Parapet Overflow Drain

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Quick Overview

Separate parapet overflow can be used in conjunction with our stand alone drains or by itself.  With standard break the drain outlet is 2" off the roof (can be made to specifications).

California Prop 65 WARNING


Availability: In stock


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  • Parapet Wall Overflow Drain
  • 16 ounce copper flashing
  • Overflow outlet is 2" above the break
  • 2", 3", or 4" bronze no hub fitting
  • Manufactured in the USA by Thunderbird Products

Additional Information

Manufacturer Thunderbird Products, Inc.
Installation Flat Roof
Material Copper
Product Drawing Separate Parapet Overflow Drain Drawing (32 KB)
Separate Parapet Overflow Drain CAD Drawing (176 KB)
Separate Parapet Overflow Drain E-Drawing (Internet Explorer Only)
Part Numbers
OFPP2NH 2" No-Hub Parapet Overflow Drain
OFPP3NH 3" No-Hub Parapet Overflow Drain
OFPP4NH 4" No-Hub Parapet Overflow Drain
Also available in Bonderized Steel. Prefix part number with "B-". Example: "B-OFPP2NH", etc...

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Can I get this over flow scupper with TPO clad and 4" pipe 8.5" out the back?
We can make this out of TPO cladded metal. Usually pipe will be extended by attaching to the no hub fitting on the drain (using a rubber coupling).
Matt Stellema answered on August 28, 2014