Scratch, dent and crush-resistant high-impact resin plastic. 10 in x 10 in opening, 17-5/16 in x 16-13/16 in flashing. 50 sq-in of net-free ventilating area. CSA listed.
| Color | : | Black |
| Height | : | 4 in |
| Installation Type | : | Roof |
| Length | : | 18-1/2 in |
| Material | : | Resin |
| Net Free Ventilating Area | : | 60 sq-in |
| Width | : | 18 in |