The Alpine Ventilation 125–150mm duct adapter reducer connects 125mm components to 150mm duct systems for seamless transitions. Perfect for inline fans, rangehoods and exhaust units with differing spigot sizes, it helps maintain airflow and reduce restriction at size changes. Install quickly with clamps or tape and seal for best results. A professional, durable connector that simplifies upgrades, replacements and mixed‑component layouts across residential and light commercial projects.

$15.95

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