The Master Flow 10 in. x 3-1/4 in. Rectangular Stack Duct Caps, also called clean-out plugs or tee-caps, simply cap off a round or rectangular duct run. They are primarily designed to terminate or block off a rectangular duct run in HVAC systems. The duct caps are compatible with most HVAC systems and can be easily installed with sheet metal screws (sold separately).
- Sturdy galvanized steel construction
- Use to cap off a round or rectangular duct run
- Install with sheet metal screws (not included)
- Fits most HVAC types for universal application
- Seal seams with code-approved mastic, sealant or duct tape (sold separately)