Use our Louver Application Guide Below to select a louver model:
| Louver Application | Louver Type | Model |
| Decorative, Air Exhaust, Ventilation | Standard Blade Louvers | E2JS, E4JS |
| Higher Wind, Still Air Exhaust | Storm Blade Louvers | E2KS, E4KS |
| Lower Pressure Drop, High Air Exhaust Velocity | Standard or Storm Louvers (Performance Series) | E4JP, E4KP, E6JP, E6KP |
| Air Intake or High Wind Areas | Drainable Blade Louvers | E2DS, E4DS |
| Air Intake, High Wind, Low Pressure Drop, High Air Intake Velocity | Drainable Blade Louver (Performance Series) | E4DP, E6DP |
| Extreme Weather, Air Exhaust or Open Ventilation | Wind Driven Rain Louver | E4WS |
| Extreme Weather, Extreme Intake Air Velocity | Wind Driven Rain Louver | E2WV, E4WH, E6WH |
Select the louver models by free area:
Table is based on a test size of 48" wide x 48" high for comparison purposes:
|
Product Model
|
Free Area
|
First Point of Water Penetration (free area velocity)
|
Overall Performance (cubic feet per min.)
|
Pressure Loss at this velocity (inches water gauge)
|
|
59.3%
|
930 fpm
|
8826 cfm
|
0.12
|
|
|
58.4%
|
960 fpm
|
8976 cfm
|
0.13
|
|
|
58.4%
|
960 fpm
|
8976 cfm
|
0.13
|
|
|
57.7%
|
1046 fpm
|
9655 cfm
|
0.13
|
|
|
57.3%
|
1123 fpm
|
10298 cfm
|
0.18
|
|
|
57.3%
|
1123 fpm
|
10298 cfm
|
0.18
|
|
|
56.0%
|
930 fpm
|
8333 cfm
|
0.13
|
|
|
56.0%
|
346 fpm
|
3100 cfm
|
0.02
|
|
|
53.8%
|
889 fpm
|
7645 cfm
|
0.24
|
|
|
51.4%
|
>1250 fpm
|
10275 cfm
|
0.21
|
|
|
50.6%
|
>1250 fpm
|
10113 cfm
|
0.25
|
|
|
50.4%
|
888 fpm
|
7157 cfm
|
0.15
|
|
|
50.4%
|
888 fpm
|
7157 cfm
|
0.15
|
|
|
49.4%
|
889 fpm
|
7032 cfm
|
0.12
|
|
|
48.7%
|
725 fpm
|
5648 cfm
|
0.08
|
|
|
48.7%
|
725 fpm
|
5648 cfm
|
0.08
|
More about Louver Free Area
Select the louver models by price:
|
Product Model
|
Price Compare*
|
|
Least Expensive
|
|
|
5% more than E4JS
|
|
|
5% more than E4JS
|
|
|
10% more than E4JS
|
|
|
10% more than E4JS
|
|
|
10% more than E4JS
|
|
|
12% more than E4JS
|
|
|
15% more than E4JS
|
|
|
15% more than E4JS
|
|
|
25% more than E4JS
|
|
|
30% more than E4JS
|
|
|
30% more than E4JS
|
|
|
35% more than E4JS
|
|
|
80% more than E4JS
|
|
|
95% more than E4JS
|
|
|
140% more than E4JS
|
*Price values are for comparison purposes only. Actual quotation prices may vary depending on the sizes required and the options selected.
Product Specific Literature:
