Connect ducts of different diameters.
Increaser & Reducers Spec Sheet
Aluminum construction
• Increaser/Reducer has crimp on 4″ end
• Reducer/Increaser has crimp on 3″ end
10290 Plastic Increaser Reducer
Built by Builder’s Best in the USA.
110493, 110492,
Increaser Reducer – Aluminum
Connect ducts of different diameters.
Increaser & Reducers Spec Sheet
Aluminum construction
• Increaser/Reducer has crimp on 4″ end
• Reducer/Increaser has crimp on 3″ end
10290 Plastic Increaser Reducer
Built by Builder’s Best in the USA.
110493, 110492,
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