Features:
• WSK shutters are airstream-operated and designed for surface mounting.
• Moulded in impact-resistant UV-stabilised PVC.
• Colour - grey.
• Flaps have an aerofoil section with the weight concentrated at the pivot point. This feature ensures easy opening and minimal pressure drop.
• Nylon spindles give silent and maintenance-free operation.
• No parts to corrode.
• Screw fixing.
• Suitable for internal or external wall or duct mounting in the vertical plane.
• Generally used for exhaust applications.
• Can be supplied to any square or rectangular dimension.
• Maximum air velocity, 11m/s

| Product Code |
A |
B |
C |
D |
E |
| WSK20 |
244 |
184 |
22 |
210 |
27 |
| WSK25 |
294 |
227 |
26 |
310 |
45 |
| WSK30 |
344 |
276 |
26 |
310 |
45 |
| WSK35 |
394 |
310 |
26 |
360 |
40 |