

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The M&M 507DR812 is a twelve inch galvanized steel round start collar featuring a damper. This component is essential for connecting ductwork in HVAC systems. The design ensures efficient airflow control, making it suitable for various heating and cooling applications.
This collar simplifies the installation of duct systems by providing a reliable connection point while allowing for airflow adjustments.
Thanks for subscribing!
This email has been registered!