Marathon Ex-Flow Vent White PVC is recommended for PVC membrane and TPO applications. 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...

In stock
  • ShipAmount
  • $0.00
  • RevType
  • 2
  • Manufacturer
  • Marathon
  • Sku
  • BV1120
  • Identity
  • 37723473747

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