DAYTON Combination Louver Dampers
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E| Style | Model | Rough Opening Height | Rough Opening Width | Free Area | Max. Intake | Max. Exhaust | Flange Width | Inside Height | Inside Width | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| A | 20UA20 | 12" | 12" | 0.2 sq. ft. | 266 CFM | 381 CFM | 1 1/2" | 10 1/2" | 9 3/4" | €549.04 | |
| B | 20UC07 | 18" | 36" | 1.5 sq. ft. | 1714 CFM | 2450 CFM | 1 1/2" | 16 1/2" | 33 3/4" | €768.50 | |
| B | 20UC12 | 18" | 42" | 1.8 sq. ft. | 2025 CFM | 2896 CFM | 1 1/2" | 16 1/2" | 39 3/4" | €772.77 | |
| B | 20UA99 | 18" | 30" | 1.3 sq. ft. | 1402 CFM | 2005 CFM | 1 1/2" | 16 1/2" | 27 3/4" | €746.17 | |
| B | 20UA93 | 18" | 24" | - | - | - | 1 1/2" | 12" | 21 3/4" | €759.13 | |
| B | 20UC19 | 18" | 48" | 2.1 sq. ft. | 2337 CFM | 3341 CFM | 1 1/2" | 16 1/2" | 45 3/4" | €944.73 | |
| A | 20UA21 | 18" | 18" | 0.7 sq. ft. | 779 CFM | 1114 CFM | 1 1/2" | 16 1/2" | 15 3/4" | €708.60 | |
| B | 20UC26 | 18" | 54" | 2.4 sq. ft. | 2648 CFM | 3787 CFM | 1 1/2" | 16 1/2" | 51 3/4" | €885.79 | |
| C | 5NKH6 | 18" | 18" | 0.521 sq. ft. | 438 CFM | 625 CFM | 1 1/4" | 12" | 18" | €595.87 | |
| B | 20UC33 | 18" | 60" | 2.6 sq. ft. | 2960 CFM | 4232 CFM | 1 1/2" | 16 1/2" | 57 3/4" | €938.05 | |
| B | 20UC34 | 24" | 60" | 4 sq. ft. | 4509 CFM | 6447 CFM | 1 1/2" | 22 1/2" | 57 3/4" | €1,100.64 | |
| B | 20UC13 | 24" | 42" | 2.8 sq. ft. | 3085 CFM | 4411 CFM | 1 1/2" | 22 1/2" | 39 3/4" | €1,038.69 | |
| A | 20UA25 | 24" | 36" | 2.3 sq. ft. | 2610 CFM | 3733 CFM | 1 1/2" | 22 1/2" | 33 3/4" | €887.15 | |
| D | 5NKH7 | 24" | 24" | 1.3 sq. ft. | 1005 CFM | 1444 CFM | 1 1/4" | 22 1/2" | 21 3/4" | €735.73 | |
| B | 20UA86 | 24" | 18" | 1.1 sq. ft. | 1186 CFM | 1697 CFM | 1 1/2" | 23 1/2" | 17 1/2" | €806.84 | |
| B | 20UA92 | 24" | 18" | 3.1 sq. ft. | 3414 CFM | 4882 CFM | 1 1/2" | 58 1/2" | 15 3/4" | €2,221.17 | |
| B | 20UC20 | 24" | 48" | 3.2 sq. ft. | 3559 CFM | 5090 CFM | 1 1/2" | 22 1/2" | 45 3/4" | €979.37 | |
| A | 20UA22 | 24" | 24" | 1.5 sq. ft. | 1661 CFM | 2375 CFM | 1 1/2" | 22 1/2" | 21 3/4" | €891.50 | |
| B | 20UC01 | 24" | 30" | 1.9 sq. ft. | 2136 CFM | 3054 CFM | 1 1/2" | 22 1/2" | 27 3/4" | €914.95 | |
| B | 20UC27 | 24" | 54" | 3.6 sq. ft. | 4034 CFM | 5769 CFM | 1 1/2" | 22 1/2" | 51 3/4" | €1,040.04 | |
| B | 20UC21 | 30" | 48" | 4.1 sq. ft. | 4564 CFM | 6526 CFM | 1 1/2" | 28 1/2" | 45 3/4" | €1,281.66 | |
| B | 20UC35 | 30" | 60" | 5.2 sq. ft. | 5781 CFM | 8267 CFM | 1 1/2" | 28 1/2" | 57 3/4" | €1,409.65 | |
| B | 20UC08 | 30" | 36" | 3 sq. ft. | 3347 CFM | 4786 CFM | 1 1/2" | 28 1/2" | 33 3/4" | €1,148.02 | |
| B | 20UA94 | 30" | 24" | - | - | - | 1 1/2" | 24" | 21 3/4" | €1,064.73 | |
| A | 20UA24 | 30" | 30" | 2.4 sq. ft. | 2738 CFM | 3916 CFM | 1 1/2" | 28 1/2" | 27 3/4" | €1,133.11 | |
| B | 20UA87 | 30" | 18" | 1.4 sq. ft. | 1521 CFM | 2175 CFM | 1 1/2" | 28 1/2" | 15 3/4" | €1,035.92 | |
| B | 20UC28 | 30" | 54" | 4.6 sq. ft. | 5172 CFM | 7397 CFM | 1 1/2" | 28 1/2" | 51 3/4" | €1,360.12 | |
| B | 20UC14 | 30" | 42" | 3.5 sq. ft. | 3955 CFM | 5656 CFM | 1 1/2" | 28 1/2" | 39 3/4" | €1,174.66 | |
| C | 5NKH8 | 30" | 30" | 2.2 sq. ft. | 1724 CFM | 2475 CFM | 1 1/4" | 28 1/2" | 27 3/4" | €1,002.63 | |
| B | 20UC02 | 36" | 30" | 3.1 sq. ft. | 3472 CFM | 4965 CFM | 1 1/2" | 34 1/2" | 27 3/4" | €1,261.10 | |
| A | 20UA26 | 36" | 36" | 3.8 sq. ft. | 4244 CFM | 6068 CFM | 1 1/2" | 34 1/2" | 33 3/4" | €1,229.73 | |
| A | 20UA29 | 36" | 48" | 5.2 sq. ft. | 5787 CFM | 8275 CFM | 1 1/2" | 34 1/2" | 45 3/4" | €1,450.74 | |
| B | 20UC36 | 36" | 60" | 6.6 sq. ft. | 7330 CFM | 10482 CFM | 1 1/2" | 34 1/2" | 57 3/4" | €1,637.46 | |
| B | 20UC15 | 36" | 42" | - | - | - | 1 1/2" | 30" | 39 3/4" | €1,337.51 | |
| C | 5NKH9 | 36" | 36" | 3.7 sq. ft. | 2406 CFM | 3781 CFM | 1 1/4" | 34 1/2" | 33 3/4" | €1,109.90 | |
| A | 20UA23 | 36" | 24" | 2.4 sq. ft. | 2700 CFM | 3862 CFM | 1 1/2" | 34 1/2" | 21 3/4" | €1,125.77 | |
| B | 20UA88 | 36" | 18" | 1.7 sq. ft. | 1929 CFM | 2758 CFM | 1 1/2" | 34 1/2" | 15 3/4" | €1,004.20 | |
| B | 20UC29 | 36" | 54" | 5.9 sq. ft. | 6558 CFM | 9378 CFM | 1 1/2" | 34 1/2" | 51 3/4" | €1,694.44 | |
| B | 20UA89 | 42" | 18" | 2 sq. ft. | 2264 CFM | 3237 CFM | 1 1/2" | 40 1/2" | 15 3/4" | €1,530.76 | |
| B | 20UC23 | 42" | 48" | 6.1 sq. ft. | 6791 CFM | 9711 CFM | 1 1/2" | 40 1/2" | 45 3/4" | €1,800.86 | |
| B | 20UC30 | 42" | 54" | 6.9 sq. ft. | 7697 CFM | 11006 CFM | 1 1/2" | 40 1/2" | 51 3/4" | €1,943.29 | |
| E | 20UA28 | 42" | 42" | 5.3 sq. ft. | 5886 CFM | 8417 CFM | 1 1/2" | 40 1/2" | 39 3/4" | €1,721.37 | |
| B | 20UC37 | 42" | 60" | 7.7 sq. ft. | 8602 CFM | 12301 CFM | 1 1/2" | 40 1/2" | 57 3/4" | €2,047.81 | |
| B | 20UC09 | 42" | 36" | 4.5 sq. ft. | 4980 CFM | 7122 CFM | 1 1/2" | 40 1/2" | 33 3/4" | €1,696.38 | |
| B | 20UA95 | 42" | 24" | 2.8 sq. ft. | 3169 CFM | 4532 CFM | 1 1/2" | 40 1/2" | 21 3/4" | €1,654.42 | |
| C | 5NKJ0 | 42" | 42" | 5 sq. ft. | 3413 CFM | 4875 CFM | 1 1/4" | 40 1/2" | 39 3/4" | €1,493.56 | |
| B | 20UC03 | 42" | 30" | - | - | - | 1 1/2" | 36" | 27 3/4" | €1,521.98 | |
| A | 20UA30 | 48" | 48" | 7.2 sq. ft. | 8014 CFM | 11460 CFM | 1 1/2" | 46 1/2" | 45 3/4" | €1,954.11 | |
| B | 20UC31 | 48" | 54" | 8.1 sq. ft. | 9082 CFM | 12988 CFM | 1 1/2" | 46 1/2" | 51 3/4" | €2,091.68 | |
| B | 20UC16 | 48" | 42" | 6.2 sq. ft. | 6945 CFM | 9932 CFM | 1 1/2" | 46 1/2" | 39 3/4" | €1,809.64 | |
| A | 20UA27 | 48" | 36" | 5.3 sq. ft. | 5877 CFM | 8404 CFM | 1 1/2" | 46 1/2" | 33 3/4" | €1,752.71 | |
| B | 20UA90 | 48" | 18" | 2.4 sq. ft. | 2671 CFM | 3820 CFM | 1 1/2" | 46 1/2" | 15 3/4" | €1,657.71 | |
| B | 20UA96 | 48" | 24" | 3.3 sq. ft. | 3740 CFM | 5348 CFM | 1 1/2" | 46 1/2" | 21 3/4" | €1,728.01 | |
| C | 5NKJ1 | 48" | 48" | 7.2 sq. ft. | 5027 CFM | 7219 CFM | 1 1/4" | 46 1/2" | 45 3/4" | €1,807.46 | |
| B | 20UC04 | 48" | 30" | 4.3 sq. ft. | 4808 CFM | 6876 CFM | 1 1/2" | 46 1/2" | 27 3/4" | €1,739.28 | |
| B | 20UC38 | 48" | 60" | 9.1 sq. ft. | 10151 CFM | 14516 CFM | 1 1/2" | 46 1/2" | 57 3/4" | €2,204.74 | |
| B | 20UC39 | 54" | 60" | 10.2 sq. ft. | 11423 CFM | 16335 CFM | 1 1/2" | 52 1/2" | 57 3/4" | €2,695.82 | |
| B | 20UA97 | 54" | 24" | 3.8 sq. ft. | 4209 CFM | 6018 CFM | 1 1/2" | 52 1/2" | 21 3/4" | €2,258.61 | |
| B | 20UC17 | 54" | 42" | 7 sq. ft. | 7816 CFM | 11177 CFM | 1 1/2" | 52 1/2" | 39 3/4" | €2,310.47 | |
| A | 20UA31 | 54" | 54" | 9.1 sq. ft. | 10221 CFM | 14616 CFM | 1 1/2" | 52 1/2" | 51 3/4" | €2,524.64 | |
| B | 20UA91 | 54" | 18" | 2.7 sq. ft. | 3006 CFM | 4299 CFM | 1 1/2" | 52 1/2" | 15 3/4" | €2,103.26 |
Combination Louver Dampers
Dayton combination louvers are engineered to secure air intake and exhaust openings from rain and weather while offering superior air flow. These manually managed combination louver dampers feature mill finish, projected aluminium, drainable frame and 45 degree fixed louvers. They come with stable height adjustable width intake louvers that lock firmly into the frame to offer seamless finish and clean appearance. Choose from a range of these combination louver dampers, available in 3, 4, 6, 7, 9 and 10 blade variants.
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