49870-VCI - Hose Adapter 2-1/2 Inch to 3 Inch
Molded 2-1/2 Inch to 3 Inch hose adapter.
Dimensions shown are from the outside of the part and may vary. When measuring your louver and looking for a hose adapter, also consider the thickness of the plastic, which can be approximately 0.08 +/- .030 thick.
The depth of the hose adapters are between 1/2" to 3/4".