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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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Solder-Connect Fittings for Copper Tubing
- Temperature Range: 32° to 200° F
Solder these fittings to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. To adhere to safety standards for drinking water systems, use fittings that meet NSF/ANSI 61 or EN 1057.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
Straight Adapters, Male Socket-Connect Tube × Female Socket-Connect Tube
- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Tube Connection (A) | Tube Connection (B) | |||||||
|---|---|---|---|---|---|---|---|---|
| Copper Tube Size  | Tube OD | Copper Tube Size | For Tube OD | Material | Max. Pressure | Lg. | Each | |
| 1/4 | 3/8" | __ | 1/4" | Copper | 400 psi @ 72° F | 3/8" | 00000000 | 00000 |
| 1/4 | 3/8" | __ | 1/4" | Copper | 400 psi @ 72° F | 3/4" | 00000000 | 0000 |
| 3/8 | 1/2" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 3/8" | 00000000 | 0000 |
| 3/8 | 1/2" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 13/16" | 00000000 | 0000 |
| 1/2 | 5/8" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 1/2" | 00000000 | 0000 |
| 1/2 | 5/8" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 1/2" | 00000000 | 0000 |
| 1/2 | 5/8" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 1 1/16" | 00000000 | 0000 |
| 1/2 | 5/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 9/16" | 00000000 | 0000 |
| 1/2 | 5/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 9/16" | 00000000 | 0000 |
| 1/2 | 5/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 1 1/8" | 00000000 | 0000 |
| 5/8 | 3/4" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 5/8" | 00000000 | 0000 |
| 5/8 | 3/4" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 1 1/4" | 00000000 | 0000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 3/4" | 00000000 | 0000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 3/4" | 00000000 | 0000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 1 1/2" | 00000000 | 0000 |
| 3/4 | 7/8" | 5/8 | 3/4" | Copper | 400 psi @ 72° F | 3/4" | 00000000 | 0000 |
| 3/4 | 7/8" | 5/8 | 3/4" | Copper | 400 psi @ 72° F | 1 9/16" | 00000000 | 0000 |
| 1 | 1 1/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 29/32" | 00000000 | 0000 |
| 1 | 1 1/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 15/16" | 00000000 | 0000 |
| 1 | 1 1/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 1 3/4" | 00000000 | 0000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 29/32" | 00000000 | 0000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 15/16" | 00000000 | 0000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 1 15/16" | 00000000 | 0000 |
| 1 1/4 | 1 3/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 1" | 00000000 | 0000 |
| 1 1/4 | 1 3/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 2 3/16" | 00000000 | 0000 |
| 1 1/2 | 1 5/8" | 1 1/4 | 1 3/8" | Copper | 400 psi @ 72° F | 1 3/16" | 00000000 | 00000 |
| 1 1/2 | 1 5/8" | 1 1/4 | 1 3/8" | Copper | 400 psi @ 72° F | 2 1/4" | 00000000 | 0000 |
| 2 | 2 1/8" | 1 1/2 | 1 5/8" | Copper | 300 psi @ 72° F | 1 7/16" | 00000000 | 00000 |
| 2 | 2 1/8" | 1 1/2 | 1 5/8" | Copper | 300 psi @ 72° F | 2 3/4" | 00000000 | 00000 |
| 3 | 3 1/8" | 2 1/2 | 2 5/8" | Copper | 300 psi @ 72° F | 3 9/16" | 00000000 | 00000 |
| 3 1/2 | 3 5/8" | 2 | 2 1/8" | Copper | 300 psi @ 72° F | 4 9/64" | 00000000 | 00000 |
| 3 1/2 | 3 5/8" | 2 1/2 | 2 5/8" | Copper | 300 psi @ 72° F | 3 29/32" | 00000000 | 00000 |
| 3 1/2 | 3 5/8" | 3 | 3 1/8" | Copper | 300 psi @ 72° F | 3 29/32" | 00000000 | 00000 |
| 4 | 4 1/8" | 2 | 2 1/8" | Copper | 200 psi @ 72° F | 4 7/8" | 00000000 | 00000 |
| 4 | 4 1/8" | 2 1/2 | 2 5/8" | Copper | 200 psi @ 72° F | 4 11/16" | 00000000 | 00000 |
| 4 | 4 1/8" | 3 | 3 1/8" | Copper | 200 psi @ 72° F | 4 19/32" | 00000000 | 00000 |
| 4 | 4 1/8" | 3 1/2 | 3 5/8" | Copper | 200 psi @ 72° F | 4 5/8" | 00000000 | 00000 |
| 5 | 5 1/8" | 2 | 2 1/8" | Copper | 200 psi @ 72° F | 5 25/32" | 00000000 | 000000 |
| 5 | 5 1/8" | 2 1/2 | 2 5/8" | Copper | 200 psi @ 72° F | 5 39/64" | 00000000 | 000000 |
| 5 | 5 1/8" | 3 | 3 1/8" | Copper | 200 psi @ 72° F | 5 15/32" | 00000000 | 000000 |
| 5 | 5 1/8" | 4 | 4 1/8" | Copper | 200 psi @ 72° F | 5 1/2" | 00000000 | 000000 |
| 6 | 6 1/8" | 2 | 2 1/8" | Copper | 200 psi @ 72° F | 6 9/16" | 00000000 | 000000 |
| 6 | 6 1/8" | 2 1/2 | 2 5/8" | Copper | 200 psi @ 72° F | 6 1/2" | 00000000 | 000000 |
| 6 | 6 1/8" | 3 | 3 1/8" | Copper | 200 psi @ 72° F | 6 3/8" | 00000000 | 000000 |
| 6 | 6 1/8" | 4 | 4 1/8" | Copper | 200 psi @ 72° F | 6 35/64" | 00000000 | 000000 |
| 6 | 6 1/8" | 5 | 5 1/8" | Copper | 200 psi @ 72° F | 6 35/64" | 00000000 | 000000 |
Straight Connectors, Female Socket-Connect Tube
- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
| Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 1/4 | 3/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 1/2" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 000 |
| 5/8 | 3/4" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 3/4 | 7/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 | 1 1/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 1/4 | 1 3/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 1/2 | 1 5/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 2 | 2 1/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
| 2 1/2 | 2 5/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
| 3 | 3 1/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
Straight Connectors with Center Stop, Female Socket-Connect Tube
- For Use With: Drinking Water
- Tubing: See table
- Specifications Met: See table
Fittings with center stop have a small internal ridge that prevents the tubing from sliding all the way through the fitting.
Fittings that meet ASTM B379 comply with international standards for tube fitting specifications.
| Copper Tube Size | For Tube OD | Material | Max. Pressure | For Copper Tube Type | Specifications Met | Each | |
| __ | 6mm | Copper | 1,300 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 00000 |
| __ | 8mm | Copper | 1,000 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| __ | 10mm | Copper | 800 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| __ | 12mm | Copper | 700 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| __ | 14mm | Copper | 600 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| __ | 15mm | Copper | 600 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 0000000 | 0000 |
| __ | 18mm | Copper | 500 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| __ | 22mm | Copper | 500 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| __ | 28mm | Copper | 400 psi @ 72° F | M | ASTM B379, DVGW GW 8, EN 1057 | 00000000 | 0000 |
| 1/8 | 1/4" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 000 |
| 1/4 | 3/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 000 |
| 3/8 | 1/2" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 000 |
| 1/2 | 5/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 000 |
| 5/8 | 3/4" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 0000 |
| 3/4 | 7/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
| 1 | 1 1/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
| 1 1/4 | 1 3/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
| 1 1/2 | 1 5/8" | Copper | 400 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
| 2 | 2 1/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 0000000 | 0000 |
| 2 1/2 | 2 5/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
| 3 | 3 1/8" | Copper | 300 psi @ 72° F | K, M, L | ASME B16.22, MSS-SP104, NSF/ANSI 61 | 00000000 | 00000 |
Straight Reducers, Male Socket-Connect Tube
- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Tube Connection (A) | Tube Connection (B) | ||||||
|---|---|---|---|---|---|---|---|
| Copper Tube Size | Tube OD | Copper Tube Size | Tube OD | Material | Max. Pressure | Each | |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 | 1 1/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 1/4 | 1 3/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 1/2 | 1 5/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 1/2 | 1 5/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 2 | 2 1/8" | 1 | 1 1/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
Straight Reducers with Center Stop, Female Socket-Connect Tube
- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Tube Connection (A) | Tube Connection (B) | ||||||
|---|---|---|---|---|---|---|---|
| Copper Tube Size | For Tube OD | Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 1/4 | 3/8" | __ | 1/4" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 3/8 | 1/2" | __ | 1/4" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 3/8 | 1/2" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 5/8" | __ | 1/4" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1/2 | 5/8" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 5/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 5/8 | 3/4" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 5/8 | 3/4" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 5/8 | 3/4" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 3/4 | 7/8" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 3/4 | 7/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 7/8" | 5/8 | 3/4" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 | 1 1/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 | 1 1/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 | 1 1/8" | 5/8 | 3/4" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 1/4 | 1 3/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 1/4 | 1 3/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 1/4 | 1 3/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 5/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 1/2 | 1 5/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 1/2 | 1 5/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 00000000 | 0000 |
| 1 1/2 | 1 5/8" | 1 1/4 | 1 3/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 2 | 2 1/8" | 1 | 1 1/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
| 2 | 2 1/8" | 1 1/4 | 1 3/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
| 2 | 2 1/8" | 1 1/2 | 1 5/8" | Copper | 300 psi @ 72° F | 0000000 | 00000 |
| 2 1/2 | 2 5/8" | 2 | 2 1/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
| 3 | 3 1/8" | 2 | 2 1/8" | Copper | 300 psi @ 72° F | 00000000 | 00000 |
Offset Straight Reducers, Female Socket-Connect Tube
Offset Configuration
- For Use With: Drinking Water
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
Offset straight reducers are also known as eccentric reducers. They have offset centers so the line can drain.
Tube Connection (A) | Tube Connection (B) | ||||||
|---|---|---|---|---|---|---|---|
| Copper Tube Size | For Tube OD | Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 00000000 | 000000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 1/4 | 1 3/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
| 1 1/4 | 1 3/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 00000000 | 00000 |
Cleaned and Bagged Solder-Connect Fittings for Copper Tubing
- For Use With: Drinking Water
- Temperature Range: 32° to 200° F
- Tubing: Use with K, M, L copper
- Specifications Met: ASME B16.22, MSS-SP104, NSF/ANSI 61
When cleanliness is crucial to your application, choose these fittings that are individually cleaned and bagged to prevent contamination. Solder the socket end to copper tubing or the tube end of another fitting for a permanent, leak-tight connection. They are also known as sweat fittings. Fittings have good corrosion resistance. They meet NSF/ANSI 61 safety standards for use with drinking water systems.
Copper tube size is the accepted designation of the copper tubing industry, not the actual tube OD.
For technical drawings and 3-D models, click on a part number.
Straight Connectors, Female Socket-Connect Tube
| Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 1/4 | 3/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 1/2" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 5/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 7/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 5/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 2 | 2 1/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
Straight Connectors with Center Stop, Female Socket-Connect Tube
Fittings with center stop have a small bump that prevents the tubing from sliding all the way through the fitting.
| Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 1/4 | 3/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 3/8 | 1/2" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 5/8" | Copper | 400 psi @ 72° F | 0000000 | 000 |
| 3/4 | 7/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 5/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 2 | 2 1/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
Straight Reducers with Center Stop, Female Socket-Connect Tube
Fittings with center stop have a small bump that prevents the tubing from sliding all the way through the fitting.
Tube Connection (A) | Tube Connection (B) | ||||||
|---|---|---|---|---|---|---|---|
| Copper Tube Size | For Tube OD | Copper Tube Size | For Tube OD | Material | Max. Pressure | Each | |
| 3/8 | 1/2" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 1/2 | 5/8" | 1/4 | 3/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1/2 | 5/8" | 3/8 | 1/2" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 3/4 | 7/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/8" | 1/2 | 5/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 | 1 1/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 1/4 | 1 3/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 0000000 | 0000 |
| 1 1/2 | 1 5/8" | 3/4 | 7/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 1 1/2 | 1 5/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 2 | 2 1/8" | 1 | 1 1/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 2 | 2 1/8" | 1 1/2 | 1 5/8" | Copper | 400 psi @ 72° F | 0000000 | 00000 |
| 3 | 3 1/8" | 2 | 2 1/8" | Copper | 300 psi @ 72° F | 0000000 | 00000 |