Exhaust fan adapter - 4" fan to 3" Tubing
Description
This was created to attach a 4 inch exhaust booster fan to a 3 inch Tube. Loose tolerances were put there intentionally, for easy and quick assembly/disassembly. Large End Inner Diameter - 4.2" Small End Outer Diameter - 2.8" Part Thickness - 0.15"
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