
DB-R4 – DUCTBOARD (4’X10′ – 1″)
Not sure this is the right one? Bring the old part or a photo of the data plate to the counter and we will match it with you - no account, no appointment, no minimums.
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
Ductboard is a rigid fiberglass sheet with foil facing that you cut and fold to fabricate custom ductwork. If you’re building a new duct run, replacing damaged ductwork, or adding a supply branch, this is the raw material. R-4 insulation rating at 1″ thick — the standard for most residential applications.
Specs: 4′ x 10′ sheet, 1″ thick, R-4 insulation value, fiberglass with foil-scrim-kraft (FSK) facing
Replaces: 196441681, 441681, OC475SHEETQ, T0475
Fits: Universal — used to fabricate custom ductwork for any HVAC system
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.
Specs
- TypeDuct Board
- Detail4'X10' - 1"
- Size1"
Cross-reference numbers
This part replaces the following OEM and aftermarket numbers:
- 196441681
- 441681
- DB-1
- DB-R4
- OC475SHEETQ
- T0475
Not sure if your number matches? Call (214) 340-9421 or bring the old part in — bench-testing is free.
Do I need an account to buy from you?
No. No account, no appointment, no minimums, and no contractor licence required. We have been open to the public in Dallas since 1998.
Do you ship?
No. Everything is sold in person at the counter - 10226 Plano Rd, Suite 104, Dallas TX 75238.
Can you help me work out what I need?
That is what the counter is for. Bring the old part, or a photo of the data plate, and we will work through it with you.
Do you test parts?
We meter capacitors, contactors, motors, ignitors, relays and transformers free at the counter, whether or not you buy from us.
What are your hours?
Monday to Friday 10am to 7pm, Saturday 10am to 3pm.




