How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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About Duct Hose
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Easy-Fit Barbed Hose Fittings for Air and Water
Low-profile barbs and a longer first barb allow for a smoother, easier installation than other barbed fittings. Slide the barbed end into rubber hose and secure with a clamp.
Zinc-plated steel fittings have slightly better corrosion resistance than unplated steel fittings. Fittings with a threaded end are also known as hose nipples.
Hose connectors are also known as hose menders and splicers. Use them to connect lengths of hose or to repair damaged hose.
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: -20° to 200° F
- Attachment Type: Use Worm-Drive Clamps, Bolt Clamps, or Band-and-Buckle Clamps
- Specifications Met: See table
| For Hose ID | Pipe Size  | Body Shape | Max. Pressure | Max. Vacuum | Specifications Met | Each | |
Zinc-Plated Steel | |||||||
|---|---|---|---|---|---|---|---|
| 8" | 8 | Round | 100 psi @ 72° F | Not Rated | ASME B1.20.1, ASTM A53 | 0000000 | 0000000 |
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: -20° to 200° F
- Attachment Type:
For 1/2" to 4" Hose IDs: Use Worm-Drive Clamps, Bolt Clamps, or Band-and-Buckle Clamps
For 6" to 8" Hose IDs: Use Band-and-Buckle Clamps - Specifications Met: See table
| For Hose ID | Max. Pressure | Max. Vacuum | Specifications Met | Each | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 8" | 100 psi @ 72° F | Not Rated | ASTM A513 | 00000000 | 0000000 |
Crush-Resistant Duct Hose for Air
- Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Blue
- Temperature Range: -40° to 225° F
Step on this polypropylene hose and the flexible plastic spiral will pop back up unharmed.
Spiral | Per Ft. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Max. Continuous Lg., ft. | 1-49 | 50-Up | |
Polypropylene | ||||||||||||
| 8" | 8 1/2" | 7" | 45% | 5 psi @ 72° F | 0.014" | Ribbed | Left Hand | Plastic | 50 | 0000000 | 000000 | 000000 |
Bend-and-Stay Metal Duct Hose for Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Temperature Range: -100° to 435° F
Unlike fabric duct hose, this lightweight aluminum hose can bend around corners and hold its shape. Hose is not for continuous flexing. The hose may need support.
| ID | OD | Bend Radius | Compresses To | Material Thick. | Interior Surface Texture | Lg., ft. | Each | |
Aluminum | ||||||||
|---|---|---|---|---|---|---|---|---|
| 8" | 8 1/16" | 12" | 30% | 0.005" | Ribbed | 8 | 00000000 | 000000 |
Quick-Attach Duct Hose with Wear Strip for Air
- Very Flexible
- Color: Yellow; Wear Strip is Black
- Temperature Range: -20° to 180° F
The ends of this hose have a belt-and-buckle connection that eliminates the need for clamps. To connect hose, slip a duct hose connector into one end and cinch the belt for a secure hold. Hose has a wear strip that protects against damage caused by dragging. Hose meets UL 94 V-0 for flame retardance.
Insulated Blo-N-Vent Duct Hose with Wear Strip for Air
- Very Flexible
- Compatible Clamps: Worm-Drive and Quick-Release Clamps
- Color: Yellow; Wear Strip is Black
- Temperature Range: -40° to 250° F
A layer of fiberglass insulation helps maintain the temperature inside the hose. Use for heating and cooling applications in outdoor environments. Hose has a wear strip that protects against damage caused by dragging. The liner meets UL 94 V-0 for flame retardance. The ends are cuffed for easy attachment to duct hose connectors.
High-Temperature Duct Hose with Wear Strip for Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Yellow; Wear Strip is Black
- Temperature Range: -20° to 325° F
An acrylic coating allows this polyester hose to hold up under higher temperatures than other fabric hose. Hose meets UL 94 V-0 for flame retardance. It has a wear strip that protects against damage caused by dragging.
Spiral | Per Ft. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | Max. Continuous Lg., ft. | 1-24 | 25-Up | |
Acrylic-Coated Polyester | |||||||||||||
| 8" | 8 1/2" | 5" | 10% | 3 psi @ 72° F | 0.018" | Ribbed | Right Hand | Metal | UL 94 V-0 | 25 | 0000000 | 000000 | 000000 |
Blo-N-Vent Duct Hose with Wear Strip for Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Yellow; Wear Strip is Black
- Temperature Range: -65° to 250° F
A general purpose duct hose for blowing and venting air, this polyester hose is lightweight and has a wear strip to protect against damage. Hose meets UL 94 V-0 for flame retardance.
Hose with embedded wire ends has a wire rope sewn into each end that lets you connect lengths of hose without a duct hose connector or clamp. Squeeze the end on one hose and slip it into the opening of another.
Spiral | Per Ft. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | 1-24 | 25-Up | |
Neoprene-Coated Polyester | ||||||||||||
| 8" | 8 7/16" | 5" | 10% | 3 psi @ 72° F | 0.013" | Ribbed | Right Hand | Metal | UL 94 V-0 | 0000000 | 000000 | 000000 |
Blo-N-Vent Duct Hose for Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Yellow
- Temperature Range: -65° to 250° F
Our most versatile duct hose for blowing and venting air, this polyester hose is lightweight and very flexible. Hose meets UL 94 V-0 for flame retardance.
Spiral | Per Ft. | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | Max. Continuous Lg., ft. | 1-24 | 25-Up | |
Neoprene-Coated Polyester | |||||||||||||
| 8" | 8 7/16" | 5" | 10% | 3 psi @ 72° F | 0.013" | Ribbed | Right Hand | Metal | UL 94 V-0 | 25 | 0000000 | 000000 | 000000 |
Easy-Store Duct Hose for Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Silver
- Temperature Range: 0° to 200° F
The most compressible hose we offer, this duct hose collapses to 5% of its length for easy storage.
Spiral | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Material Thick. | Interior Surface Texture | Direction | Material | Specifications Met | Lg., ft. | Each | |
Polyester Hose with Metalized Film Cover | |||||||||||
| 8" | 8 3/8" | 8" | 5% | 0.001" | Ribbed | Left Hand | Metal | NFPA 90A, NFPA 90B, UL 181 Class 1 | 25 | 00000000 | 000000 |
Slide these connectors into the end of your hose and secure with a clamp to create longer lengths.
| For Hose ID | ID | OD | Lg. | Specifications Met | Each | |
Galvanized Steel | ||||||
|---|---|---|---|---|---|---|
| 8" | 7 31/32" | 8" | 5 3/8" | ASTM A653-07-CS Type B | 00000000 | 000000 |
Insulated Duct Hose for Indoor Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Silver
- Temperature Range: -20° to 140° F
Insulated with a layer of fiberglass, this ultra-thin, lightweight hose keeps air at a constant temperature. Use scissors or a utility knife to cut the hose to length.
Spiral | Insulation | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Maximum Airflow, fpm | Material Thick. | Interior Surface Texture | Direction | Material | Material | R Value | Thick. | Specifications Met | Lg., ft. | Each | |
Fiberglass Hose with Silver Metalized Film Cover | |||||||||||||||
| 8" | 10" | 8" | 20% | 5,000 | 0.002" | Ribbed | Left Hand | Metal | Fiberglass | 4.2 | 1" | NFPA 90A, NFPA 90B, UL 181 Class 1 | 25 | 00000000 | 000000 |
Insulated Bend-and-Stay Metal Duct Hose for Air
- Very Flexible
- Compatible Clamps: Worm-Drive Clamps
- Color: Silver
- Temperature Range: -100° to 435° F
Bend this hose into position in heating and cooling applications where it’s important to maintain the temperature of the air inside the hose. Unlike fabric duct hose, this lightweight aluminum hose holds its shape once it’s curved around corners. It’s insulated with a layer of fiberglass, so it keeps air flowing through at a consistent temperature even when it’s routed through hot or cold spaces. The metalized film cover seals out moisture, protecting the insulation underneath.
This hose is not meant to be continuously flexed. Lengths beyond 6 ft. may need support.
Spiral | Insulation | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ID | OD | Bend Radius | Compresses To | Max. Airflow, fpm | Max. Vacuum | Max. Pressure | Material Thick. | Interior Surface Texture | Direction | Material | Material | R Value | Thick. | Specifications Met | Lg., ft. | Each | |
Aluminum Hose with Metalized Film Cover | |||||||||||||||||
| 8" | 11 1/16" | 6" | 25% | 5,000 | 0.88 in. of Hg @ 72° F | 0.4 psi @ 72° F | 0.006" | Ribbed | Right Hand | Metal | Fiberglass | 4.2 | 1 1/2" | NFPA 90A/90B, UL 181 Class 1 | 8 | 0000000 | 0000000 |