Series RFVS Gravity Ventilators

ResoFLO continuous ridge ventilators, employing corrosion-resistant FRP components, are designed to produce maximum gravity airflow under a wide range of adverse operating conditions. Internal baffles and the outside windband effectively seal out the elements and prevent backdrafts. Special corrosion resistant bearings permit optional manual chain operated dampers to always move freely, even in the most corrosive industrial environments. ResoFLO gravity ventilators operate efficiently requiring virtually no maintenance expense while offering substantial savings in ventilation costs compared to power ventilators.

These ventilators provide excellent corrosion resistance for industrial and commercial exhaust applications.
Unit of Measure


Hardware Material

N/A 304 Stainless Steel

Vent Length

N/A Standard 10 ft. modules

End Cap

N/A Two (2) per run


N/A Self Flashing Ridge Mount

Standard Colors

N/A Beige Gray Stone White


N/A 9 in12 in18 in24 in


N/A High quality isophthalic polyester resin with a flame spread of 25 or less, UV stabilizers.

Standard Features

Standard Features

  • Construction
    High quality isophthalic polyester resin with a flame spread of 25 or less, UV stabilizers
  • Hardware
    304 stainless steel
  • Vent Length
    Standard 10' modules
  • End Cap
    Two (2) per run
  • Base
    Self flashing ridge mount
  • Colors
    Stone White, Gray or Beige
  • Throat
    4 sizes: 9", 12", 18", 24"

Optional Features

Optional Features

  • Hardware
    316 stainless steel
  • Damper
    Manual chain or motor driven
  • Bird Screen
    1/2" polyethylene mesh (stock)
  • Base
    Curb mount
  • Special Color
    (Minimum quantity requirements)
  • Special Resin
    (Minimum quantity requirements)