| Model: | FS1(SS) |
| Filter: | FS1H250SS,FS1V250SS |
| Depth: | 5½" |
| Orientation: | Vertical or Horizontal |
| Frame Material: | 16 ga. 304 Stainless Steel |
| Frame Type: | Hat Channel; Flat Head and Sill for Sizes thru 13" High |
| Sleeve: | 20 ga. 304 Stainless Steel by 18" Long |
| Blade Material: | 16 ga. 304 Stainless Steel Single Thickness |
| Blade Action: | Parallel |
| Blade Seals: | Silicone |
| Jamb Seals: | Stainless Steel |
| Bearings: | Stainless Steel |
| Axles: | 304 Stainless Steel |
| Linkage: | 304 Stainless Steel Angle and Crank Plates with Staineless Steel Pivots
In-Jamb |
| Stops: | 18 ga. 304 Stainless at Head and Sill |
| Actuator: | Electric 120V, 24V or 230V with Heat Response Device (EHRD)
Pneumatic with Heat Response Device (PHRD)
Factory installed for Power-Open/Spring-Close (Fail Close) Operation
External Left Hand Mount Standard
Rigth Hand and/or Internal Mount Options |
| Finish: | Mill |
| Max Differential Pressure: | 4 in. w.g. |
| Max Velocity: | 2000fpm or 3000fpm |
| Leakage Rating: | 4 cfm per ft2 Max at 1 in. w.g.
8 cfm per ft2 Max at 4 in. w.g. |
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