- Specifications
- Documents
- Description
- Adjustable for project changes
- Stainless steel outer band
- Fast and easy installation
- Bolts, nuts, and washers meet ASTM B117
This 4 inch Plenum Plus no-hub coupling is a mechanical joint coupling for use in return air plenums. The stainless steel outer band and hand tool assembled clamp make this strong coupling easy to install. The coupling can also be removed after installation for project changes or maintenance requirements, and makes it easy to assemble complex sub-assemblies.