Louvres
| Graphic | Sizes | |
|---|---|---|
| Round (CLR) |
 |
18 x 18 24 x 24 30 x 30 |
| Octagon (CLO) |
 |
18 x 18 24 x 24 30 x 30 |
| Half Round (CLHR) |
 |
18 x 9 24 x 12 30 x 15 32 x 16 36 x 18 48 x 24 |
| Arched (CLA) |
 |
18 x 30 |
| Rectagular (CRL) |
 |
18 x 30 |
 |
|
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