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Gravity Roof Vent, 22 In Sq Base
- Item # 2RB70
- Mfr. Model # 2RB70
- UNSPSC # 40101502
- Catalog Page # 3709
- Shipping Weight 15.65 lbs.
- Item Gravity 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
- CFM/Throat Velocity @ 0.050-In. SP Gravity Intake 448/546
- CFM/Throat Velocity @ 0.050-In. SP Gravity Relief 523/638
- CFM/Throat Velocity @ 0.100-In. SP Gravity Intake 633/772
- CFM/Throat Velocity @ 0.100-In. SP Gravity Relief 740/903
- CFM/Throat Velocity @ 0.125-In. SP Gravity Intake 708/863
- CFM/Throat Velocity @ 0.125-In. SP Gravity Relief 828/1009
- CFM/Throat Velocity @ 0.200-In. SP Gravity Intake 895/1092
- CFM/Throat Velocity @ 0.200-In. SP Gravity Relief 1047/1277
- CFM/Throat Velocity @ 0.250-In. SP Gravity Intake 1001/1221
- CFM/Throat Velocity @ 0.250-In. SP Gravity Relief 1171/1428
- Max. Intake CFM/Throat Velocity 1512/1848
- Construction Material Spun Aluminum
- Recommended 8 In. Fixed Curb Item No. 4HX39
- Recommended 12 In. Fixed Curb Item No. 2RB76
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