﻿Duct damper has patented spring-release handle
Tri-Air Innovations has developed a duct damper that combines the simplicity of a single-blade damper with the demands of blade setting accuracy and product reliability. It is made in the UK and has a price that is said to be equivalent to the most basic dampers available.
These dampers are intended for use with spiral ducts and will slot easily into all proprietary brands.
The patented spring-release handle enables dampers to be set in many different positions and will not slip or rattle.
The handle support has recessed elevations to allow for the unobstructed installation of duct lagging without disturbing the mechanism.