
FDS1 – FLEX DUCT SUPPORT
10226 Plano Rd, Suite 104, Dallas TX 75238
Questions? Call or text (214) 340-9421
Mon–Fri 10 am – 7 pm | Sat 10 am – 3 pm
Flex duct sags over time, especially in long runs through attics and crawlspaces. When duct sags, it creates low spots that restrict airflow and reduce cooling/heating. This support clips onto the duct to hold its shape and keep air moving.
Specs: Fits 4″ to 16″ flex duct, 100% recycled polymer, lightweight, installs with zip ties or duct strap
Replaces: FDS181GRAY
Fits: Universal — works with any 4″ to 16″ flexible duct
In stock at Open To Public HVAC Parts in Dallas. We test parts at the counter before you buy. Call or text (214) 340-9421.
Cross-reference numbers
This part replaces the following OEM and aftermarket numbers:
- FDS181GRAY
- MASTERFLOWSUPPORT
- THERMOPANTHERMO-SADDLE
Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.




