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 Plastic and Rubber Tubing
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About Hose
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Lightweight Air Hose with ARO Quick-Disconnect Socket and Plug
- Temperature Range: -10° to 155° F
- Material: PVC
- Color: Blue, Gray, Red, or Yellow
Hose is PVC, so it’s lighter and less cumbersome than rubber hose.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (blue, gray, red, or yellow) and length, and fitting type, material, and size on both ends.
Lightweight Air Hose with Industrial Quick-Disconnect Socket and Plug
- Temperature Range: -10° to 155° F
- Material: PVC
- Color: Blue, Gray, Red, or Yellow
Hose is PVC, so it’s lighter and less cumbersome than rubber hose.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (blue, gray, red, or yellow) and length, and fitting type, material, and size on both ends.
| Coupling Size | ID | OD | Bend Radius | Max. Pressure | Choose a Color | 20 ft. | |
Brass Industrial Quick-Disconnect Female Socket × Steel Industrial Quick-Disconnect Male Plug | |||||||
|---|---|---|---|---|---|---|---|
| 1/4 × 1/4 | 1/4" | 1/2" | 3" | 300 psi @ 72° F | 00000000 | ||
| 1/4 × 1/4 | 3/8" | 5/8" | 4" | 300 psi @ 72° F | 00000000 | ||
Steel Industrial Quick-Disconnect Female Socket × Steel Industrial Quick-Disconnect Male Plug | |||||||
| 1/2 × 1/2 | 1/2" | 13/16" | 6" | 300 psi @ 72° F | 00000000 | ||
Lightweight Air Hose with Tru-Flate Quick-Disconnect Socket and Plug
- Temperature Range: -10° to 155° F
- Material: PVC
- Color: Blue, Gray, Red, or Yellow
Hose is PVC, so it’s lighter and less cumbersome than rubber hose.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (blue, gray, red, or yellow) and length, and fitting type, material, and size on both ends.
| Coupling Size | ID | OD | Bend Radius | Max. Pressure | Choose a Color | 20 ft. | |
Brass Tru-Flate Quick-Disconnect Female Socket × Steel Tru-Flate Quick-Disconnect Male Plug | |||||||
|---|---|---|---|---|---|---|---|
| 1/4 × 1/4 | 3/8" | 5/8" | 4" | 300 psi @ 72° F | 00000000 | ||
Steel Tru-Flate Quick-Disconnect Female Socket × Steel Tru-Flate Quick-Disconnect Male Plug | |||||||
| 1/2 × 1/2 | 1/2" | 13/16" | 6" | 300 psi @ 72° F | 00000000 | ||
Lightweight Air Hose with Male Threaded Fittings
- Temperature Range: -10° to 155° F
- Material: PVC
- Color: Blue, Gray, Red, or Yellow
Hose is PVC, so it's light and easy to handle.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (blue, gray, red, or yellow) and length, and fitting type, material, and size on both ends.
Lightweight Air Hose with Male and Female Threaded Fittings
- Temperature Range: -10° to 155° F
- Material: PVC
- Color: Blue, Gray, Red, or Yellow
- Female Fitting Swivels Until Tightened
Hose is PVC, so it’s lighter and less cumbersome than rubber hose. Fittings that swivel until tightened are easy to install.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (blue, gray, red, or yellow) and length, and fitting type, material, and size on both ends.
Lightweight Air Hose with Female Threaded Fittings
- Temperature Range: -10° to 155° F
- Material: PVC
- Color: Blue, Gray, Red, or Yellow
- Both Fittings Swivel Until Tightened
Hose is PVC, so it’s lighter and less cumbersome than rubber hose. Fittings swivel until tightened for easy installation.
For any combination of hose length and fittings not listed in the table, please select 5138K999. Specify hose color (blue, gray, red, or yellow) and length, and fitting type, material, and size on both ends.
Choose-a-Color Air Hose for Push-On Fittings
- Temperature Range: -20° to 150° F
- Material: Buna-N Rubber with Blended Rubber Cover
- Color: Black, Blue, Gray, Green, Red, or Yellow
- Compatible Hose Fittings: Push-On Barbed
Identify your air lines by color. The unique braid-reinforced design means no clamps or banding are needed to secure fittings to this hose. The more you pull on the fittings, the tighter the hose will grip.
Flame-Resistant Air Hose for Push-On Fittings
- Temperature Range: -20° to 150° F
- Material:
1/4" to 3/4" ID: Buna-N Rubber
1" ID: Synthetic Rubber - Color: Black
- Compatible Hose Fittings: Push-On Barbed
The rubber cover meets MSHA (Mine Safety and Health Administration) standards for flame resistance, so this hose is often used to transfer highly compressed air in robotic welding systems. With a unique braid-reinforced design, it doesn't require clamps or banding to connect to push-on fittings. The more you pull on the fittings, the tighter the hose will grip. This hose is reinforced with aramid fiber or yarn, so it's flexible enough to twist and route through tight spaces without kinking. Made of Buna-N or synthetic rubber, the hose and its cover meet ARPM Class A for oil resistance, which means you can use it to transfer lubricated air. They're also nonconductive and won't degrade from UV light.
Vacuum Air Hose with Male Threaded Fittings
- Temperature Range: -20° to 170° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: Buna-N Rubber
- Color: Yellow
This hose handles full vacuum, so it's often used to remove air and reduce humidity in vacuum bagging applications.
Vacuum Air Hose with Male and Female Threaded Fittings
- Temperature Range: -20° to 170° F
- Maximum Vacuum: 29" of Hg @ 72° F
- Material: Buna-N Rubber
- Color: Yellow
This hose handles full vacuum, so it's often used to remove air and reduce humidity in vacuum bagging applications.
Flexible Retracting Air Hose
Hose is polyurethane so it stretches and flexes more than nylon retracting hose. Fittings that swivel until tightened are easy to install. The length listed is the usable length. The extended length will be longer.
- Temperature Range: -40° to 125° F
- Maximum Vacuum: 27" of Hg @ 72° F
- Material: Polyurethane
- Color: Black, Blue, Clear, Neon Green, Red, Semi-Clear Blue, or Yellow
- Both Fittings Swivel Until Tightened
- Temperature Range: -40° to 165° F
- Maximum Vacuum: 27" of Hg @ 72° F
- Material: Polyurethane
- Color: Black or Neon Orange
- Both Fittings Swivel Until Tightened
20-ft. Lengths | |||||||
|---|---|---|---|---|---|---|---|
| Pipe Size | ID | OD | Coil OD | Max. Pressure | Choose a Color | Each | |
| 1/4 × 1/4 | 1/4" | 3/8" | 2 1/2" | 147 psi @ 72° F | 00000000 | 000000 | |
- Temperature Range: -40° to 180° F
- Maximum Vacuum: 27" of Hg @ 72° F
- Material: Polyurethane
- Color: Semi-Clear Blue
- One Male Fitting Swivels Until Tightened
High-Vacuum Exhaust Hose with Quick-Clamp Fittings
Connect to high-vacuum pumps to route exhaust fumes out of your work area. Also known as roughing hose. This hose is equipped with quick-clamp (KF) fittings; a clamp and a ring (both sold separately) are required for each fitting. Hose is flexible so you can snake it around equipment. It's reinforced with wire to prevent it from collapsing. Not for use in pressure applications.
- Temperature Range: 25° to 150° F
- Material: PVC Plastic
- Color: Clear
- Fitting Material: 304 Stainless Steel
| For Tube OD | Flange OD | High-Vacuum Flange Size | ID | OD | Wall Thickness | Bend Radius | High Vacuum Connection Type | Max. Vacuum | Specifications Met | Each | |
20 ft. Lg. | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4" | 1.18" | 16 | 3/4" | 1" | 0.139" | 3" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 0000000 |
| 1" | 1.57" | 25 | 1" | 1 5/16" | 0.145" | 4" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 000000 |
| 1 1/2" | 2.16" | 40 | 1 1/2" | 1 7/8" | 0.18" | 6" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 000000 |
| 2" | 2.95" | 50 | 2" | 2 3/8" | 0.195" | 8" | ISO-KF | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 000000 |
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | Material | Max. Vacuum | Specifications Met | Each | |
With Wing Nut | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1/2", 3/4" | 1.18" | 10, 16 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | ISO 2861 | 00000000 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Aluminum | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
Material | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Tube OD | For Flange OD | For High-Vacuum Flange Size | High Vacuum Connection Type | O-Ring | Inner Ring | Max. Vacuum | Specifications Met | Each | |
| 3/4" | 1.18" | 16 | ISO-KF | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 10 -8 torr @ 72° F | ISO 2861 | 00000000 | 00000 |
| 1" | 1.57" | 25 | ISO-KF | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 1 1/2" | 2.16" | 40 | ISO-KF | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
| 2" | 2.95" | 50 | ISO-KF | Viton® Fluoroelastomer Rubber | 304 Stainless Steel | 10 -8 torr @ 72° F | ISO 2861 | 0000000 | 00000 |
High-Pressure Firm Plastic and Rubber Tubing for Air and Water
A braid reinforcement gives this tubing excellent strength in high-pressure applications.
Polyurethane rubber tubing is clear, so you can easily monitor flow through the line. This ether-based tubing performs better in humid environments than ester-based polyurethane. It’s flexible, so it easily bends around objects.
- Flexible
- Clear Blue, Red, Yellow Tubing: Compatible with Compression Tube Fittings
Clear Tubing: Compatible with Barbed Tube Fittings - Firm (Durometer 85A)
- Temperature Range: -40° to 160° F
Abrasion-Resistant Firm Rubber Tubing for Air and Water
With excellent resistance to abrasion and tearing, this rubber tubing can hold up in rugged environments. It is semi-flexible, so it is good for gradual bends.
Polyurethane tubing is clear, so you can easily monitor flow through the line. Polyurethane tubing that is for use with air and water is ether based, so it stays strong and durable even in wet environments.
Soft Plastic Tubing for Air and Water
This general purpose PVC tubing is the industry standard for air and water applications. Tubing is clear, so you can easily monitor flow. It is flexible to easily bend around objects.
Masterkleer tubing is more economical than Tygon tubing. Tygon tubing has a nonabsorbing surface for improved flow and drainage.
- Flexible
- Compatible with Barbed Tube Fittings
- Hardness: Soft (Durometer 70A)
- Temperature Range: -40° to 140° F
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 65A)
- Temperature Range: -30° to 160° F
| ID | OD | Wall Thick. | Bend Radius | Max. Pressure | Color | Lengths, ft. | Per Ft. | |
Inch | ||||||||
|---|---|---|---|---|---|---|---|---|
| 7/8" | 1 1/8" | 1/8" | 4 1/8" | 20 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1" | 1 1/4" | 1/8" | 5 1/8" | 15 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1" | 1 3/8" | 3/16" | 3 3/4" | 25 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1" | 1 1/2" | 1/4" | 3" | 30 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1 1/4" | 1 1/2" | 1/8" | 7 3/8" | 15 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1 1/4" | 1 5/8" | 3/16" | 5 1/2" | 20 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1 1/2" | 1 7/8" | 3/16" | 7 1/4" | 15 psi @ 72° F | Clear | 0000000 | 00000 | |
| 1 1/2" | 2" | 1/4" | 5 7/8" | 20 psi @ 72° F | Clear | 0000000 | 00000 | |
| 2" | 2 1/2" | 1/4" | 9 3/8" | 15 psi @ 72° F | Clear | 0000000 | 00000 | |
| 2 1/4" | 2 3/4" | 1/4" | 11 1/4" | 15 psi @ 72° F | Clear | 0000000 | 00000 | |
UV-Resistant Soft Plastic and Rubber Tubing for Air and Water
This tubing won’t degrade when exposed to the damaging effects of ultraviolet light. It is opaque, so you can’t see what’s flowing through the line.
PVC plastic tubing is the most economical option.
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 70A)
- Temperature Range: -5° to 160° F
Static-Control Soft Plastic and Rubber Tubing for Air and Water
Protect sensitive equipment with this tubing—it is specially formulated to reduce the buildup of static electricity.
Silicone rubber tubing has carbon embedded into the walls to divert static quickly. It can handle a wider temperature range than PVC tubing, and is more flexible, so it bends easily around objects. It is opaque, so you can’t see what’s flowing through the line.
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 70A)
- Temperature Range: -70° to 450° F
| ID | OD | Wall Thick. | Bend Radius | Max. Pressure | Color | Lengths, ft. | Per Ft. | |
| 1/8" | 3/8" | 1/8" | 1/4" | 10 psi @ 72° F | Black | 000000 | 000000 | |
| 3/16" | 5/16" | 1/16" | 1/4" | 10 psi @ 72° F | Black | 000000 | 0000 | |
| 1/4" | 3/8" | 1/16" | 1/2" | 3 psi @ 72° F | Black | 000000 | 0000 | |
| 1/4" | 1/2" | 1/8" | 1/2" | 10 psi @ 72° F | Black | 000000 | 00000 | |
| 3/8" | 1/2" | 1/16" | 1/2" | 5 psi @ 72° F | Black | 000000 | 0000 | |
| 3/8" | 5/8" | 1/8" | 1/4" | 5 psi @ 72° F | Black | 0000000 | 00000 | |
| 1/2" | 3/4" | 1/8" | 1/2" | 3 psi @ 72° F | Black | 0000000 | 00000 | |
| 3/4" | 1" | 1/8" | 1" | 3 psi @ 72° F | Black | 0000000 | 00000 |
Continuous-Flex Soft Plastic Tubing for Air and Water
This PVC tubing can handle continuous bending and flexing in applications requiring movement, such as metering (peristaltic) pumps and robotics. Tubing is clear, so you can easily monitor flow through the line. It’s commonly referred to as Tygon tubing.
- Manufacturer Equivalent Number: E-LFL
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 55A)
- Temperature Range: -50° to 160° F
Abrasion-Resistant Soft Rubber Tubing for Air and Water
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 45A)
- Temperature Range: -70° to 180° F
Thick, gum rubber walls give this tubing excellent abrasion resistance. It is opaque, so you can’t see what’s flowing through the line. Tubing is flexible to easily bend around objects.
| ID | OD | Wall Thick. | Max. Vacuum | Vacuum Rating | Color | Lengths, ft. | Per Ft. | |
Opaque Gum Rubber | ||||||||
|---|---|---|---|---|---|---|---|---|
Inch | ||||||||
| 1/2" | 1 1/8" | 5/16" | 29 in. of Hg @ 72° F | Standard | Beige | 0000000 | 000000 | |
| 1/2" | 1 1/4" | 3/8" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
| 5/8" | 1 3/8" | 3/8" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
| 5/8" | 1 5/8" | 1/2" | 29 in. of Hg @ 72° F | Standard | Beige | 0000000 | 00000 | |
| 3/4" | 1 1/2" | 3/8" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
| 3/4" | 1 3/4" | 1/2" | 29 in. of Hg @ 72° F | Standard | Red | 0000000 | 00000 | |
| 3/4" | 2" | 5/8" | 29 in. of Hg @ 72° F | Standard | Beige | 0000000 | 00000 | |
| 7/8" | 1 3/8" | 1/4" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
| 1" | 2" | 1/2" | 29 in. of Hg @ 72° F | Standard | Beige | 0000000 | 00000 | |
| 1" | 2 1/4" | 5/8" | 29 in. of Hg @ 72° F | Standard | Beige | 0000000 | 00000 | |
| 1 1/4" | 1 3/4" | 1/4" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
| 1 1/2" | 1 7/8" | 3/16" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
| 1 1/2" | 2 1/2" | 1/2" | Not Rated @ Not Rated | __ | Beige | 0000000 | 00000 | |
High-Purity Soft Plastic and Rubber Tubing
Designed for high-purity processes, this tubing is made without plasticizers like DEHP that can contaminate the fluid passing through it. It meets USP Class VI specifications for material testing; it is not for use in medical applications. Tubing is clear or semi-clear, so you can monitor flow. It’s also flexible and easily bends around objects.
Tubing with braid reinforcement has extra strength to handle higher pressures than nonreinforced tubing.
- Manufacturer Equivalent Number:
Clear Tygon Plastic Blend Tubing without Polyester Braid Reinforcement: 2475
Clear Tygon Plastic Blend Tubing with Polyester Braid Reinforcement: 2475 I.B. - Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 70A)
- Environment: Sanitary
- Temperature Range: -90° to 120° F
| ID | OD | Wall Thick. | Bend Radius | Max. Pressure | Max. Vacuum | Color | Specifications Met | Lengths, ft. | Per Ft. | |
Without Polyester Braid Reinforcement | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 5/8" | 7/8" | 1/8" | 2 1/4" | 25 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 000000 | |
| 3/4" | 1" | 1/8" | 3 1/4" | 20 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 00000 | |
| 1" | 1 3/8" | 3/16" | 3" | 20 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 00000 | |
With Polyester Braid Reinforcement | ||||||||||
| 1/2" | 3/4" | 1/8" | 1 1/4" | 230 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 0000 | |
| 5/8" | 7/8" | 1/8" | 1 3/4" | 130 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 00000 | |
| 3/4" | 1 1/16" | 5/32" | 2 1/4" | 130 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 00000 | |
| 1" | 1 3/8" | 3/16" | 3 1/2" | 120 psi @ 72° F | 29 in. of Hg @ 72° F | Clear | USP Class VI | 0000000 | 00000 | |