This Imperial Round to Oval Duct Adapter is used to create an in-line transition between a 4-in non-insulated flexible dryer duct and a 4-3/4-in oval duct pipe. It is typically used when flexible or foil ducting is needed instead of solid metal pipe—such as when running duct through a dryer box. The oval end comes pre-crimped, eliminating the need for manual crimping and making the connection to the oval pipe quicker and easier. Made from 30-gauge galvanized steel for rust resistance and long-lasting durability, this round to oval duct adapter or boot installs easily with metal clamps (sold separately) for a secure fit. This size is commonly used in dryer vent installations and helps ensure a reliable connection with minimal airflow restriction.
Creates a straight, in-line transition between a 4-in non-insulated flexible dryer duct and a 4-3/4-in oval duct pipe
For use with dryer vent installations where flexible ducting connects to oval pipe through a dryer box
Pre-crimped oval end allows for quick and secure connection without manual crimping
Made from 30-gauge galvanized steel for durability and rust resistance
Installs easily with metal clamps (sold separately) for a tight, secure fit
Use foil tape to seal the oval duct adapter to the pipe.