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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
Purlin Box – Forms a secure roof upstand for mounting
Built for long-term reliability
Available in AC & IE5 EC'
Phone: Call us at 01706 335330 for expert guidance
36 – Blade pitch angle (degrees) for required duty
Systemair RAW Roof Cowl 400/450 Fans Purlin Box – Forms aSystemair RAW 400 450 Horizontal Discharge Roof Cowl GRP Weatherproof Roof Terminal The Systemair RAW 400 450 Horizontal Discharge Roof Cowl is a heavy duty commercial roof ventilation terminal manufactured from UV stabilised glass reinforced polyester (GRP), providing exceptional corrosion resistance, structural rigidity, and long term weather protection in exposed rooftop environments. Ideal for large commercial and industrial ventilation systems,
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