| If you have a tight space or need a flush mount for aesthetic reasons, a No-Collar vent might be more suitable. | For Masonry or thicker walls, a No-Collar vent can provide a better fit. | Collar vents are generally easier to install, especially in new construction as they quickly connect to the ductwork. | Ensure that the vent you choose complies with local building codes. Rigid metal vents are often recommended for their safety and efficiency. |