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POPULA Aluminum Air Outlet Series Aluminum alloy air outlets (ventilation diffusers & louvers) are terminal air distribution fittings for HVAC ventilation systems. Made of high-strength aluminum alloy with electrostatic spray coating, widely used for air supply & return air in office buildings, ...

POPULA Fire Damper & Air Volume Control Damper Fire dampers and air volume regulating dampers are essential safety and air adjustment fittings for building HVAC ventilation and fire protection duct systems. Manufactured in Foshan, Guangdong, available in galvanized steel or stainless steel materials...