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30 Days Easy Return. We are the largest supplier of the most adaptable, personalized hardware in the industry. We work hard to ensure you're satisfied with our products.
Warranty
Free from Manufacturer Defect at Time of Delivery.
Gauge
30
Pack Size
1
Manufacturer Warranty
Free from Manufacturer Defect at Time of Delivery.
Brand/Model Compatibility
Universal
Duct Size (in.)
4
General Material
Galvanized Steel
HVAC Product Type
HVAC Part
Product Depth (in.)
4
Product Height (in.)
3
Product Width (in.)
4
UNSPSC
40141900
The Master Flow 4 in. Diameter Starting Collar is crimped for easy installation. This starting collar can be used to transition from a flat surface such as an unlined metal plenum to round metal pipe. Can also be attached to most unlined metal ductwork, such as rectangular duct. Constructed of galvanized steel, this starting collar is made for durability.
- Made of galvanized steel
- Fits most 4 in. metal pipe
- Helps transition from unlined metal duct to round pipe
- Seal seams with code-approved mastic, sealant or duct tape (sold separately)