

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.
This is a Final Sale item and cannot be returned or refunded. Exceptions apply for damaged or defective items.
Secure Payments
Expert Advice
Fast Shipping
M&M Manufacturing 503ATH14 is an Air Tite starting collar less damper designed for efficient air distribution in duct systems. This model features a gasketed flange that ensures a tight seal at the joint. The damper is lightweight at two point seven pounds, making it easy to install.
Ideal for use in heating, ventilation, and air conditioning (HVAC) applications, this collar enhances air flow efficiency and minimizes leakage.
Thanks for subscribing!
This email has been registered!