Products
Increasers
Description
Increases ducting diameter. Crimped on larger end.
3-4BTI 3″ to 4″
4-6BTI 4″ to 6″
5-6BTI 5″ to 6″
7-8BTI 7″ to 8″
Frequently Asked Questions
Which end of an Increaser is crimped?
The larger end is crimped so the fitting can connect a smaller round duct to a larger downstream duct size.
How is an Increaser different from a Reducer?
An increaser transitions from a smaller duct to a larger duct and has the larger end crimped; a reducer transitions toward a smaller duct and has the smaller end crimped.
How do you step up from a smaller duct to a larger one?
Increasers connect smaller round ductwork to a larger downstream duct size; the larger end is crimped for the specified connection.
Which Increaser sizes are documented?
Available transitions are 3 to 4, 4 to 6, 5 to 6, and 7 to 8 inches.