Crafted from durability, PVC materials, this duct reducer withstands high temperatures and corrosive kitchen environments for simple installation in minutes By significantly reducing exhaust resistance, this essential ventilation accessory enhances your ranges hoods ' s, effectively cooking fumes to maintain a fresher cooking environment Ideal for home cooks and restaurant owners seeking reliability ventilation solution, this versatile duct adapter accommodates various ranges hoods models across residential and commercial kitchen settings Perfect for upgrading existing ventilation systems or connecting new ranges hoods installations, this conversion rings eliminates compatibility issues between mismatched duct sizes in any kitchen layout This universals adapter enables seamless conversion from 80mm to 150mm diameters, ensuring optimal airflows between your ranges hoods and exhaust duct while blockages for smoked efficiency, Manufacturer: RUINBNC