| Model: | GD1 / GD2 |
| Filter: | GD1,GD2 |
| Minimum Panel Size: | 6" x 6" Parallel (GD1) 6" x 11" Opposed (GD2) |
| Maximum Panel Size: | 48" x 72" |
| Frame Depth: | 4 ⅞" |
| Frame Type: | Hat Channel Shaped; Flat Head and Sill thru 14" High |
| Frame Material: | 16 ga. Galvanized Steel |
| Blade Type: | Single Thickness/Single Blade with Formed Edges and Center Bead |
| Blade Material: | 16 ga. Galvanized Steel |
| Blade Action: | Parallel or Opposed |
| Blade Seals: | None |
| Jamb Seals: | None |
| Bearings: | Heavy Duty Molded Nylon |
| Axles: | Plated Steel Stub |
| Actuator: | &frAC12;" Extended Shaft, Manual Quadrants 120V, 24V, or 230V Electric or Pneumatic |
| Finish: | Mill |
| Temperature: | 200° F |
| Max Differential Pressure: | 4 in. w.g. |
| Max Velocity: | 2000fpm |