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 Metal Tubing
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Metal Barbed Hose Fittings for Air and Water
Slide the barbed end into rubber hose and secure with the appropriate clamp or crimp-on hose ferrule.
Brass fittings are softer than other metal fittings, so they’re easier to thread together. Plain brass fittings have good corrosion resistance. Nickel-plated brass fittings resist corrosion better than plain brass fittings.
Bronze fittings have better corrosion resistance and are stronger than brass and aluminum fittings. A pipe thread sealant is recommended to seal bronze fittings with BSPP male threads, which is unlike other materials that can often use a gasket.
Aluminum fittings are lighter in weight than other metal fittings. They have good corrosion resistance.
Stainless steel fittings have very good corrosion resistance. 303 stainless steel fittings won’t rust when exposed to water, making them good for areas that require frequent cleanings. 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.
Metric, UN/UNF (SAE Straight), and BSPP male threads with gasket protect against leaks.
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
| For Hose ID | Pipe Size  | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| 20mm | 3/4 | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 000000 |
| 20mm | 1 | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
Aluminum | ||||||||
| 20mm | 3/4 | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -20° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
303 Stainless Steel | ||||||||
| 20mm | 3/4 | 250 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
| 20mm | 1 | 250 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
UN/UNF (SAE Straight)
Male Threads with Gasket
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: Bronze Fittings: ASTM B584
| For Hose ID | Pipe Size | Gasket Material | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Brass | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 20mm | 1 | Buna-N Rubber | 300 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 000000 |
Bronze | |||||||||
| 20mm | 3/4 | __ | 100 psi @ 72° F | Not Rated | -32° to 212° | Worm-Drive Clamp | 1 | 00000000 | 00000 |
303 Stainless Steel | |||||||||
| 20mm | 3/4 | Buna-N Rubber | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
| For Hose ID | Pipe Size | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Nickel-Plated Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| 20mm | 3/4 | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 000000 |
303 Stainless Steel | ||||||||
| 20mm | 3/4 | 250 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
| For Hose ID | Pipe Size | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Brass | ||||||||
|---|---|---|---|---|---|---|---|---|
| 20mm | 3/4 | 300 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 000000 |
303 Stainless Steel | ||||||||
| 20mm | 3/4 | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
| 20mm | 1 | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 00000 |
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
| For Hose ID | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Brass | |||||||
|---|---|---|---|---|---|---|---|
| 20mm | 125 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 000000 |
- Maximum Pressure: See table
- Maximum Vacuum: See table
- Temperature Range: See table
- Attachment Type: See table
- Specifications Met: See table
For Hose ID | ||||||||
|---|---|---|---|---|---|---|---|---|
| (A) | (B) | Max. Pressure | Max. Vacuum | Temperature Range, °F | Attachment Type | Pkg. Qty. | Pkg. | |
Brass | ||||||||
| 25mm | 20mm | 250 psi @ 72° F | 27 in. of Hg @ 72° F | -30° to 200° | Worm-Drive Clamp, Band-and-Buckle Clamp, Crimp-On Hose Ferrule | 1 | 00000000 | 000000 |
- Maximum Pressure: 100 psi @ 72° F
- Temperature Range: -32° to 212° F
- Attachment Type: Use Worm-Drive Clamps
- Specifications Met: ASTM B584
| For Hose ID | Pipe Size | Pkg. Qty. | Pkg. | |
Bronze | ||||
|---|---|---|---|---|
| 20mm | 3/4 | 1 | 00000000 | 000000 |
Plastic Barbed Hose Fittings for Water
Made of polypropylene, these fittings have good corrosion and abrasion resistance, and are lighter in weight than metal barbed hose fittings. Slide the barbed end into plastic or rubber hose and secure with a clamp.
- Maximum Pressure: Inch: 150 psi @ 72° F; Metric 200 psi @ 72° F
- Temperature Range: Inch: 10° to 150° F; Metric: 35° to 190° F
- Attachment Type: Use Worm-Drive Clamps or Bolt Clamps
For Hose ID | ||||
|---|---|---|---|---|
| (A) | (B) | Color | Each | |
Polypropylene Plastic | ||||
| 20mm | 19mm | Black | 00000000 | 00000 |
Metal Barbed Hose Fittings for Chemicals and Petroleum
Made of stainless steel, these fittings stand up to a wide variety of chemicals, as well as fuels, gasoline, and oils. To connect, slide the barbed end into plastic or rubber hose and secure with a clamp.
Adapters are also known as hose nipples; they adapt a barbed end to a threaded end.
- For Use With: See table
- Maximum Pressure: See table
- Temperature Range: See table
- Attachment Type: Use Band-and-Buckle Clamps
| For Hose ID | Pipe Size | Max. Pressure | Temperature Range, °F | For Use With | Each | |
316 Stainless Steel | ||||||
|---|---|---|---|---|---|---|
| 20mm | 3/4 | 300 psi @ 72° F | -40° to 300° | Acetone, Diesel Fuel, Ethanol, Fuel Oil, Gasoline, Mineral Oil, Mineral Spirits, Vegetable Oil | 000000000 | 000000 |
| 20mm | 1 | 300 psi @ 72° F | -40° to 300° | Acetone, Diesel Fuel, Ethanol, Fuel Oil, Gasoline, Mineral Oil, Mineral Spirits, Vegetable Oil | 000000000 | 00000 |
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.
- Flexible
- Compatible with Barbed Tube Fittings
- Hardness: Soft (Durometer 70A)
- Temperature Range: -40° to 140° F
High-Temperature Abrasion-Resistant Soft
Rubber Tubing for Food, Beverage, and Dairy
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 65A)
- Temperature Range: -60° to 450° F
Not only can this tubing handle the highest temperatures of all our soft tubing for food, beverage, and dairy, it also has thick, silicone rubber walls for superior abrasion and crush resistance. Tubing is made of FDA listed materials. Free of plasticizers like DEHP, it won’t impart tastes or odors to the fluid passing through it. Tubing is semi-clear, so you get a limited view inside the line. It is flexible, so it bends easily around objects.
Soft Plastic Tubing for Chemicals
Use this general purpose PVC tubing with a variety of chemicals. Tubing is clear, so you can easily monitor flow. It is flexible, so it bends easily around objects.
PVC tubing is the most economical option.
Abrasion-Resistant Soft Rubber Tubing for Fuel
- Flexible
- Compatible with Barbed Tube Fittings
- Soft (Durometer 70A)
- Temperature Range: -40° to 180° F
This polyurethane tubing is soft enough to handle continuous bending and flexing, yet tough enough to resist tearing and abrasion. Use it in applications requiring movement, such as metering (peristaltic) pumps and robotics. Tubing is semi-clear, so you get a limited view inside the line.
High-Polish Stainless Steel Tubing for Food, Beverage, and Dairy
The interior and exterior are polished to a high-luster finish to resist particle buildup and allow for easy cleaning. Tubing is welded with a smoothed weld bead on the inside.
304/304L stainless steel tubing has very good corrosion resistance. Tubing that meets DIN 11850 and DIN EN 10357 complies with international standards for food industry stainless steel tubing.
Note: Ra measures the smoothness of the tubing; the lower the Ra value, the smoother and more polished the surface.
- Temperature Rating: Not Rated
- Compatible Tube Fittings: Butt Weld and High-Polish Quick Clamp