Gray North 3″ A Collar Small End Crimped 3-313SE HVAC Duct Fitting

SKU: 3-313SE

Weight	1.5 lbs
Dimensions	8 × 8 × 8 in
Condition	New
Manufacturer Part Number	3-313SE

$4.12

In stock — available to order.

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Quantity	Unit price	Saving
1–4	$4.12	0%
5–9	$3.91	5%
10+	$3.71	10%

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Gray North 3" A Collar Small End Crimped 3-313SE HVAC Duct Fitting

Specifications & product details

3″ A Collar Small End – Crimped – MFG# 3-313SE

This 3-inch galvanized steel A collar (small end, crimped) is designed for creating secure branch take-offs from trunk lines in residential HVAC duct systems.

The crimped end allows quick and secure insertion into 3″ round rigid or flexible duct, while the tabbed edge provides stable fastening to sheet metal trunk lines or plenums.

Key Features & Benefits:

✔ 3″ round duct size
✔ Small end configuration
✔ Crimped connection end
✔ Galvanized steel construction
✔ Ideal for branch take-offs
✔ Corrosion-resistant finish

Common Applications:

Bathroom exhaust runs
Dryer vent transitions
Small supply branch lines
Residential HVAC duct systems
Retrofit or new construction installs

Pairs well with:

3″ rigid round pipe
3″ insulated flex duct
Worm gear clamps
Foil HVAC tape

Designed for HVAC professionals needing compact, reliable duct take-offs.

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