4" Oval to 3" Round Vent Adapter Pack

This vent adapter set is designed around a 135mm x 84mm oval exhaust port with an internal opening of 130mm x 79mm, adapting to a standard 3-inch round exhaust duct.

It was specifically designed and tested for the Panasonic FV-0510V51 exhaust fan, but it should also work with other oval exhaust ports that are roughly the same size.

This pack includes:

• Straight oval-to-round adapter

• 90° side-exit adapter

• 90° rear-exit adapter

The adapters are designed for flexibility depending on your vent routing needs.

Included files:

• STL files

• STEP files for modification/remixing

OnShape source files:
If you need a different size, feel free to copy and modify the design:
https://cad.onshape.com/documents/6fbaa604eedfd666f039aa60/w/3ae478b15b68e8dd89e390ef/e/26c0be06f2b8fb5e1b27b14e

Note:
Changing the diameter of the round outlet may break the 90° sweep geometry depending on how aggressively the dimensions are changed. The issue is usually easy to repair in CAD, but be aware it can happen.

Recommended Print Settings

• 4 walls

• 20% cubic infill

• Supports enabled

Material Recommendations

• PLA works well in mild climates where the adapter will not be exposed to high attic temperatures.

• PETG or ABS is recommended for higher temperature environments such as attics or enclosed hot spaces.