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Gravity Vent, 48 In, Base 54 1/2 In Sq
- Item # 1WDN7
- Mfr. Model # 1WDN7
- UNSPSC # 40101604
- Catalog Page # 3709
- Shipping Weight 493.0 lbs.
- Item Gravity Ventilator
- Fan Size (In.) 48
- Width (In.) 90
- Depth (In.) 90
- Overall Height (In.) 42-1/2
- Base Width (In.) 54-1/2
- Base Length (In.) 54-1/2
- CFM/Throat Velocity @ 0.050-In. SP Gravity Intake 7300/456
- CFM/Throat Velocity @ 0.050-In. SP Gravity Relief 7695/481
- CFM/Throat Velocity @ 0.100-In. SP Gravity Intake 10,324/645
- CFM/Throat Velocity @ 0.100-In. SP Gravity Relief 10,882/680
- CFM/Throat Velocity @ 0.125-In. SP Gravity Intake 11,542/721
- CFM/Throat Velocity @ 0.125-In. SP Gravity Relief 12,167/760
- CFM/Throat Velocity @ 0.200-In. SP Gravity Intake 14,600/912
- CFM/Throat Velocity @ 0.200-In. SP Gravity Relief 15,390/962
- CFM/Throat Velocity @ 0.250-In. SP Gravity Intake 16,323/1020
- CFM/Throat Velocity @ 0.250-In. SP Gravity Relief 17,207/1075
- Max. Intake CFM/Throat Velocity 20,766/1240
- Construction Material Galvanized Steel
- Recommended 6 3/8"H Roof Curb Item No. 3C216
- Recommended 12 3/8"H Roof Curb Item No. 2ZV86
- Recommended 12 In. Fixed Curb Item No. 3AZJ6
- Damper Size (In.) 49 x 49
- Recommended Gravity Backdraft Damper Item No. 6WRK8
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