Speedi-Products 4 in. x 3 in. Galvanized Sheet Metal three piece reducers. Used to reduce the diameter of a HVAC supply, return or exhaust round duct. Can be used for Remodeling, Do it yourself & New Residential projects.
- 4 in. x 3 in. Galvanized sheet metal three piece reducers
- Used to reduce the diameter of a hvac supply, return or exhaust round duct
- Seal joints with approved duct mastic sealants
- Insulate ductwork for improved energy efficiency and comfort
- Consult your local building codes for approved installation practices