Dayton 2RB70


Gravity Roof Vent, 22 In Sq Base

2RB70 326049
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ItemGravity Ventilator
Fan Size (In.)12
Width (In.)29
Depth (In.)29
Overall Height (In.)11-3/4
Base Width (In.)22
Base Length (In.)22
Max. Intake CFM/Throat Velocity1512/1848
Construction MaterialSpun Aluminum
Recommended 8 In. Fixed Curb Item No.4HX39
Recommended 12 In. Fixed Curb Item No.2RB76
Weight 15.650000


Gravity Ventilator, Fan Size 12 In, Width 29 In, Depth 29 In, Overall Height 11 3/4 In, Base Width 22 In, Base Length 22 In, 448/546 CFM/Throat Velocity @ 0.050-In SP Gravity Intake, 523/638 CFM/Throat Velocity @ 0.050-In SP Gravity Relief, Max Intake CFM/Throat Velocity 1512/1848, Construction Spun Aluminum

Low-Profile Gravity Roof Ventilators
  • Designed for exhaust or supply applications on natural gravity or positive pressure systems. Low-profile hoods have rigid aluminum, corrosion-resistant construction. Integral birdscreen. Built-in curb cap with prepunched holes for easy attachment to roof curb.

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