For intake or extract air, the 45o blades are fixed at 30mm centres and have excellent integral rain defence features. Suitable for external mounting and designed for smaller louvre panels For intake or extract air, the 45o blades are fixed at 50mm centres and arranged in double bank formation to offer higher levels of rain defence effectiveness For intake or extract air, the 45o blades are fixed at 50mm centres and have excellent integral rain defence features. Heavy duty construction.

Sand trap louvers ideal for preventing sand entering ventilation system. Manufactured from heavy duty aluminum frame and blades.Integral collection chute.