Supports & Accessories

Duct supports and accessories help installers assemble, position, connect, seal and finish compatible ventilation and ductwork runs. This category includes components for commercial HVAC, ventilation-system installation and maintenance work, such as duct hangers, end caps, clamps, hose adapters, replacement O-rings, fabric-duct cable and manual blast gates.

Product Display:
Helpful Buying Guide

Choose duct accessories that match the connection, size and job

The products represented here address distinct parts of a duct installation: supporting duct sections, closing a run, joining rolled-edge components, transitioning to flexible hose, replacing a connection seal and manually adjusting airflow. Start with the duct or connection type, then confirm the listed diameter and construction before selecting a component.

Visual Guide

Popular examples in this category

Plastic-Coated Galvanized Cable, 82-Ft Roll for Fabric DuctingPlastic-Coated Galvanized Cable, 82-Ft Roll for Fabric DuctingWBB57275416-Inch Clamp-Together Duct End Cap, Galvanized, 18 Gauge16-Inch Clamp-Together Duct End Cap, Galvanized, 18 GaugeWBB2691341Clamp-Together Manual Blast Gate, 10 in. Diameter, GalvanizedClamp-Together Manual Blast Gate, 10 in. Diameter, GalvanizedWBB269134314-Inch Galvanized Hat-Style Saddle Hanger14-Inch Galvanized Hat-Style Saddle HangerWBB2691237
Use Cases

Build, support and finish duct runs

Use hangers to support compatible 14-inch ductwork, end caps to close compatible duct runs, and cable for compatible fabric duct sections. Clamps, adapters and O-rings address compatible duct and hose connections.

How to Choose

Match the component to the system

Confirm whether the application uses fabric ducting, clamp-together ductwork or quick-fit components. Then match the listed diameter, such as 3, 4, 10, 12, 14 or 16 inches, and choose the required component type.

Applications

Plan for the task at hand

For a duct-run closure, select an end cap. For a duct-to-hose transition, use a hose adapter. For a connection between compatible duct sections or hose components, consider the applicable clamp; use a manual blast gate where hand-adjusted airflow is needed.

Additional Information

Compare construction and connection details

Represented options include galvanized steel or cable, 304 stainless steel, cast aluminum and Buna-N. Some clamps include an internal gasket or factory-installed nitrile seal, while the 4-inch replacement O-ring is intended for a compatible adjustable nipple.

3–16 in.End cap sizes represented

Choose from represented 3-, 4- and 16-inch compatible duct closures.

14 in.Hanger size represented

Both represented saddle hanger styles support compatible 14-inch ductwork.

2 clamp sizesHose clamp diameters represented

Hose clamps are represented in 4- and 12-inch diameters.

82 ft.Fabric-duct cable roll

The represented plastic-coated galvanized cable is supplied as an 82-foot roll.

Comparison Guide

Compare represented accessory types

Use this overview to narrow the selection based on the installation task and the listed compatibility details.

Accessory typePrimary roleRepresented selection details
End capsClose the end of a compatible duct runClamp-together options in 3, 4 and 16 inches; galvanized 18-gauge or 304 stainless steel 18-gauge construction represented.
Clamps and sealsJoin compatible duct or hose connections and help seal joints4- and 12-inch hose clamps with internal gaskets; 10-inch quick-fit clamp with bridge pin and nitrile seal; 4-inch Buna-N replacement O-ring.
Supports, transitions and controlSupport ductwork, connect duct to hose, install fabric ducting or adjust airflow14-inch saddle hangers; 10-inch galvanized hose adapter; 82-foot fabric-duct cable; 10-inch manual blast gate.
Planning Guide

Plan the right fit before choosing

Start with duct compatibility

Identify the connection style before comparing accessories

Connection style determines which accessory fits the installation. The represented products include cable for fabric duct sections; clamp-together components for duct assemblies; and quick-fit items for compatible duct pipe, hose and fittings.

  • Fabric-duct cable fits cable clips incorporated into compatible fabric duct sections.
  • Clamp-together end caps are represented in 3-, 4- and 16-inch sizes.
  • Quick-fit clamps and a quick-fit hose adapter are represented for compatible duct connections.
Match diameter and function

Select by the job the component must perform

Diameter is a primary selection point, but the accessory's function is equally important. Close a run with an end cap, support ductwork with a saddle hanger, connect components with a clamp, or create a duct-to-hose transition with an adapter.

  • End caps are represented for 3-, 4- and 16-inch duct diameters.
  • Saddle hangers are represented for 14-inch ductwork.
  • A manual blast gate and quick-fit duct clamp are represented in 10-inch sizes.
  • Hose clamps are represented in 4- and 12-inch diameters.
Review material and sealing features

Compare the listed construction details

Construction varies across the represented accessories. Galvanized options include end caps, hangers and a hose adapter, while 304 stainless steel appears in selected end caps and clamps. Connection details may include an internal gasket, a factory-installed nitrile seal, a bridge pin or a replacement Buna-N O-ring.

  • The 10-inch quick-fit duct clamp uses a bridge pin closure and factory-installed nitrile seal.
  • The 4- and 12-inch hose clamps include internal gaskets.
  • The 4-inch replacement O-ring is black Buna-N.
  • The 10-inch manual blast gate has a cast aluminum body and a thumb-screw lock.
FAQ

Common questions before buying

What are duct end caps used for?

End caps close the end of a compatible duct run. Represented clamp-together options fit 3-, 4- and 16-inch duct applications.

What size ductwork do the represented saddle hangers support?

The represented galvanized saddle hangers are sized for 14-inch-diameter ductwork.

How do the represented clamps differ?

The hose clamps fasten hose to compatible adapters, fittings or machines, while the 10-inch quick-fit duct clamp joins compatible quick-fit duct pipe sections. Listed sealing and closure details vary by clamp.

What does the 10-inch manual blast gate do?

It lets users adjust airflow by hand and regulate CFM through a compatible duct run. A thumb-screw lock helps hold the sliding closure in the selected position.

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