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About Pipe and Fittings
Measure your pipe and fittings to identify their pipe size, thread size, schedule, and thread type. Then, find compatible components.
Low-Pressure Iron and Steel Butt-Weld Pipe Fittings
Straight Reducers
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Butt Weld × Butt Weld |
Pipe Size | ||||||||
|---|---|---|---|---|---|---|---|---|
(A) | (B) | Construction | Pipe Schedule | Material | Each | |||
Butt Weld × Butt Weld | ||||||||
| 3/4 | 1/2 | Seamless | 40 | Steel | 43425K411 | 000000 | ||
| 1 | 1/2 | Seamless | 40 | Steel | 43425K417 | 00000 | ||
| 1 | 3/4 | Seamless | 40 | Steel | 43425K415 | 00000 | ||
| 1 1/4 | 1/2 | Seamless | 40 | Steel | 43425K443 | 00000 | ||
| 1 1/4 | 3/4 | Seamless | 40 | Steel | 43425K441 | 00000 | ||
| 1 1/4 | 1 | Seamless | 40 | Steel | 43425K419 | 00000 | ||
| 1 1/2 | 1/2 | Seamless | 40 | Steel | 43425K471 | 00000 | ||
| 1 1/2 | 3/4 | Seamless | 40 | Steel | 43425K449 | 00000 | ||
| 1 1/2 | 1 | Seamless | 40 | Steel | 43425K447 | 00000 | ||
| 1 1/2 | 1 1/4 | Seamless | 40 | Steel | 43425K445 | 00000 | ||
| 2 | 3/4 | Seamless | 40 | Steel | 43425K479 | 00000 | ||
| 2 | 1 | Seamless | 40 | Steel | 43425K477 | 00000 | ||
| 2 | 1 1/4 | Seamless | 40 | Steel | 43425K475 | 00000 | ||
| 2 | 1 1/2 | Seamless | 40 | Steel | 43425K473 | 00000 | ||
| 2 1/2 | 2 | Seamless | 40 | Steel | 43425K481 | 00000 | ||
| 3 | 1 1/4 | Seamless | 40 | Steel | 43425K495 | 00000 | ||
| 3 | 1 1/2 | Seamless | 40 | Steel | 43425K493 | 00000 | ||
| 3 | 2 | Seamless | 40 | Steel | 43425K491 | 00000 | ||
| 3 | 2 1/2 | Seamless | 40 | Steel | 43425K482 | 00000 | ||
| 4 | 2 | Seamless | 40 | Steel | 43425K499 | 00000 | ||
| 4 | 2 1/2 | Seamless | 40 | Steel | 43425K483 | 00000 | ||
| 4 | 3 | Seamless | 40 | Steel | 43425K497 | 00000 | ||
| 6 | 3 | Seamless | 40 | Steel | 43425K486 | 000000 | ||
| 6 | 4 | Seamless | 40 | Steel | 43425K487 | 00000 | ||
| 8 | 4 | Seamless | 40 | Steel | 43425K488 | 000000 | ||
| 8 | 6 | Seamless | 40 | Steel | 43425K489 | 000000 | ||
| 10 | 6 | Seamless | 40 | Steel | 43425K484 | 000000 | ||
| 10 | 8 | Seamless | 40 | Steel | 43425K485 | 000000 | ||
Long 90° Elbow Connectors
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Butt Weld |
Pipe Size | Construction | OD | Pipe Schedule | Material | Each | |||
|---|---|---|---|---|---|---|---|---|
Butt Weld | ||||||||
| 10 | Seamless | 10 3/4" | 40 | Steel | 43425K251 | 0000000 | ||
45° Elbow Connectors
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Butt Weld |
Pipe Size | Construction | OD | Pipe Schedule | Material | Each | |||
|---|---|---|---|---|---|---|---|---|
Butt Weld | ||||||||
| 10 | Seamless | 10 3/4" | 40 | Steel | 43425K252 | 0000000 | ||
Caps
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Butt Weld |
Pipe Size | Construction | OD | Pipe Schedule | Material | Color | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Butt Weld | |||||||||
| 10 | Seamless | 10 3/4" | 40 | Enamel-Coated Steel | Green | 43425K256 | 0000000 | ||
180° Bend Connectors
Pipe Size | Construction | Pipe Schedule | Material | Color | Shape | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Butt Weld | |||||||||
| 3/4 | Seamless | 40 | Enamel-Coated Steel | Green | 180° Bend | 43425K123 | 0000000 | ||
| 1 | Seamless | 40 | Steel | — | 180° Bend | 43425K133 | 000000 | ||
| 1 1/4 | Seamless | 40 | Steel | — | 180° Bend | 43425K143 | 000000 | ||
| 1 1/2 | Seamless | 40 | Steel | — | 180° Bend | 43425K153 | 000000 | ||
| 4 | Seamless | 40 | Steel | — | 180° Bend | 43425K213 | 000000 | ||
| 6 | Seamless | 40 | Steel | — | 180° Bend | 43425K233 | 000000 | ||
Stub-End Straight Adapters
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Straight Adapter |
Pipe Size | Flange OD | Construction | Pipe Schedule | Finished Material | Each | ||
|---|---|---|---|---|---|---|---|
| 1/2 | 1 3/8" | Seamless | 40 | Steel | 43425K115 | 000000 | |
| 3/4 | 1 11/16" | Seamless | 40 | Steel | 43425K125 | 00000 | |
| 1 | 2" | Seamless | 40 | Steel | 43425K135 | 00000 | |
| 1 1/4 | 2 1/2" | Seamless | 40 | Steel | 43425K145 | 000000 | |
| 1 1/2 | 2 7/8" | Seamless | 40 | Steel | 43425K155 | 000000 | |
| 2 | 3 5/8" | Seamless | 40 | Steel | 43425K165 | 000000 | |
| 2 1/2 | 4 1/8" | Seamless | 40 | Steel | 43425K175 | 000000 | |
| 3 | 5" | Seamless | 40 | Steel | 43425K185 | 000000 | |
| 4 | 6 3/16" | Seamless | 40 | Steel | 43425K215 | 000000 | |
| 6 | 8 1/2" | Seamless | 40 | Steel | 43425K235 | 000000 | |
| 8 | 10 5/8" | Seamless | 40 | Steel | 43425K245 | 000000 |
High-Pressure Iron and Steel Butt-Weld Pipe Fittings
Straight Reducers
![]() |
Butt Weld × Butt Weld |
Pipe Size | ||||||||
|---|---|---|---|---|---|---|---|---|
(A) | (B) | Construction | Pipe Schedule | Material | Each | |||
Butt Weld × Butt Weld | ||||||||
| 1 1/2 | 1 | Seamless | 80 | Steel | 4981T119 | 000000 | ||
| 2 | 3/4 | Seamless | 80 | Steel | 4981T122 | 00000 | ||
| 2 | 1 | Seamless | 80 | Steel | 4981T123 | 00000 | ||
| 2 | 1 1/4 | Seamless | 80 | Steel | 4981T124 | 00000 | ||
| 2 | 1 1/2 | Seamless | 80 | Steel | 4981T125 | 00000 | ||
| 2 1/2 | 2 | Seamless | 80 | Steel | 4981T126 | 00000 | ||
| 3 | 1 1/4 | Seamless | 80 | Steel | 4981T127 | 00000 | ||
| 3 | 1 1/2 | Seamless | 80 | Steel | 4981T128 | 00000 | ||
| 3 | 2 | Seamless | 80 | Steel | 4981T129 | 00000 | ||
| 3 | 2 1/2 | Seamless | 80 | Steel | 4981T131 | 00000 | ||
| 4 | 2 | Seamless | 80 | Steel | 4981T132 | 00000 | ||
| 4 | 2 1/2 | Seamless | 80 | Steel | 4981T133 | 00000 | ||
| 4 | 3 | Seamless | 80 | Steel | 4981T134 | 00000 | ||
| 6 | 3 | Seamless | 80 | Steel | 4981T135 | 000000 | ||
| 6 | 4 | Seamless | 80 | Steel | 4981T136 | 000000 | ||
Stub-End Straight Adapters
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Straight Adapter |
Pipe Size | Flange OD | Construction | Pipe Schedule | Finished Material | Each | ||
|---|---|---|---|---|---|---|---|
| 3/4 | 1 1/16" | Seamless | 80 | Steel | 4981T221 | 000000 | |
| 1 | 2" | Seamless | 80 | Steel | 4981T231 | 00000 | |
| 1 1/4 | 2 1/2" | Seamless | 80 | Steel | 4981T241 | 000000 | |
| 1 1/2 | 2 7/8" | Seamless | 80 | Steel | 4981T251 | 000000 | |
| 2 | 3 5/8" | Seamless | 80 | Steel | 4981T261 | 000000 | |
| 2 1/2 | 4 1/8" | Seamless | 80 | Steel | 4981T271 | 000000 | |
| 3 | 5" | Seamless | 80 | Steel | 4981T281 | 000000 | |
| 4 | 6 3/16" | Seamless | 80 | Steel | 4981T291 | 000000 | |
| 6 | 8 1/2" | Seamless | 80 | Steel | 4981T321 | 000000 |




































