- Color: White
- Type: Flexible
- Fitting / Connector Type: Coupling
- Manufacturer: Research Products Corporation
- Manufacturer #: ARN33C
- Nominal Size: 3 in
The AprilAire ARN33C flexible couplings are used as a means of disconnecting the 3” PVC pipe for servicing the unit and for vibration isolation. As the fan is typically outside of the building thermal boundary and is venting to the outside, installation of insulation around the fan is not required.