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Marathon Aluminum Large Capacity (LC) Vent 8"

- Available in 2 Options. Pricing may vary.

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Product Information


Marathon Large Capacity 8in. Vent provides pressure equalization in the roof system and is spun from heavy gauge aluminum with inique cap design that shields against entry of wind-blown rain or snow. It is available in either one-way or two-way options. One-way nitrile rubber valve prevents moisture from re-entering roofing systems while the two-way option lacks a valve which will allow both exhaust and convective movement of air between the breathers.


  • Low cost, all-metal breather used for venting all types of insulation
  • An extra wide base opening and security attached cap
  • An optional foam insert is available to prevent moisture from condensing on the inside of the standpipe
  • Flange may be coated with asphalt priming or PVC

Marathon Large Capacity Vent Diagram

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