The Flexflow Elbow (patent pending) ensures that a flexible duct connection to a diffuser maintains its proper shape for maximum airflow, says the company. It works as a brace to hold ductwork in ...
When a contractor calls a product "groundbreaking," that says a lot. In this case, that adjective was applied to the Paramount Hâ„¢ adjustable frame for the rough-in and installation of register ...