STC and All Air provide a complete line of Stainless Steel compression fittings and barb compression fittings, including both inch and metric sizes.
Product Lineup
Compression Fittings
Show Product Specifications (Group 1)
| Sizes Available (Standard) | Sizes Available (Metric) | ||
|---|---|---|---|
| Branch Tee |  |
Tube OD 1/8″; Thread NPT1/8″; Tube OD 1/8″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/4″; Tube OD 5/16″; Thread NPT1/8″; Tube OD 5/16″; Thread NPT1/4″; Tube OD 5/16″; Thread NPT3/8″; Tube OD 3/8″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/4″; Tube OD 1/2″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/2″; |
Tube OD 6mm; Thread R1/4; Tube OD 6mm; Thread R3/8; Tube OD 8mm; Thread R1/8; Tube OD 8mm; Thread R1/4; Tube OD 12mm; Thread R1/4; Tube OD 12mm; Thread R3/8; Tube OD 12mm; Thread R1/2; |
| Female Connector |  |
Tube OD 1/8″; Thread NPT1/8″; Tube OD 1/8″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT3/8″; Tube OD 1/4″; Thread NPT1/2″; Tube OD 5/16″; Thread NPT1/8″; Tube OD 5/16″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT1/8″; Tube OD 3/8″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT3/8″; Tube OD 3/8″; Thread NPT1/2″; Tube OD 1/2″; Thread NPT1/4″; Tube OD 1/2″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/2″; |
N/A |
| Female Branch Tee |  |
Tube OD 1/8″; Thread NPT1/8″; Tube OD 1/8″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/4″; Tube OD 1/2″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/2″; |
N/A |
| Male Connector |  |
Tube OD 1/8″; Thread NPT1/8″; Tube OD 1/8″; Thread NPT1/4″; Tube OD 3/16″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT3/8″; Tube OD 5/16″; Thread NPT1/8″; Tube OD 5/16″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT1/8″; Tube OD 3/8″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT3/8″; Tube OD 3/8″; Thread NPT1/2″; Tube OD 1/2″; Thread NPT1/4″; Tube OD 1/2″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/2″; Tube OD 1/2″; Thread NPT3/4″; |
Tube OD 4mm; Thread M5; Tube OD 4mm; Thread R1/8; Tube OD 6mm; Thread M5; Tube OD 6mm; Thread R1/8; Tube OD 6mm; Thread R1/4; Tube OD 8mm; Thread R1/8; Tube OD 8mm; Thread R1/4; Tube OD 8mm; Thread R3/8; Tube OD 10mm; Thread R1/8; Tube OD 10mm; Thread R1/4; Tube OD 10mm; Thread R3/8; Tube OD 10mm; Thread R1/2; Tube OD 12mm; Thread R1/4; Tube OD 12mm; Thread R3/8; Tube OD 12mm; Thread R1/2; |
| Male Elbow |  |
Tube OD 1/8″; Thread NPT1/8″; Tube OD 1/8″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT3/8″; Tube OD 5/16″; Thread NPT1/8″; Tube OD 5/16″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT1/8″; Tube OD 3/8″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT3/8″; Tube OD 3/8″; Thread NPT1/2″; Tube OD 1/2″; Thread NPT1/4″; Tube OD 1/2″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/2″; Tube OD 1/2″; Thread NPT3/4″; |
Tube OD 6mm; Thread M5; Tube OD 6mm; Thread R1/8; Tube OD 6mm; Thread R1/4; Tube OD 8mm; Thread R1/8; Tube OD 8mm; Thread R1/4; Tube OD 8mm; Thread R3/8; Tube OD 8mm; Thread R1/2; Tube OD 10mm; Thread R1/4; Tube OD 10mm; Thread R3/8; Tube OD 12mm; Thread R1/4; Tube OD 12mm; Thread R3/8; Tube OD 12mm; Thread R1/2; |
| Run Tee |  |
Tube OD 1/8″; Thread NPT1/8″; Tube OD 1/8″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT1/8″; Tube OD 1/4″; Thread NPT1/4″; Tube OD 1/4″; Thread NPT3/8″; Tube OD 3/8″; Thread NPT1/4″; Tube OD 3/8″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT3/8″; Tube OD 1/2″; Thread NPT1/2″; |
N/A |
Show Product Specifications (Group 2)
| Sizes Available (Standard) | Sizes Available (Metric) | ||
|---|---|---|---|
| Bulkhead Union |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 6mm; |
| Elbow Union |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 6mm; Tube OD 10mm; Tube OD 12mm; |
| Straight Union |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 4mm; Tube OD 6mm; Tube OD 8mm; Tube OD 10mm; Tube OD 12mm; |
| Tee Union |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 6mm; Tube OD 8mm; |
| Cross Union |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
N/A |
| Reducing Union |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 3/8; Tube OD 1/2; |
N/A |
| Cap |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
N/A |
| Back Ferrule |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 4mm; Tube OD 6mm; Tube OD 8mm; Tube OD 12mm; |
| Front Ferrule |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 6mm; Tube OD 8mm; Tube OD 10mm; Tube OD 12mm; |
| Nut |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 6mm; Tube OD 8mm; Tube OD 10mm; Tube OD 12mm; |
| Plug |  |
Tube OD 1/8; Tube OD 1/4; Tube OD 5/16; Tube OD 3/8; Tube OD 1/2; |
Tube OD 6mm; |
| Tube Stem Reducer |  |
1/8X1/16; 1/8X1/8; 1/8X1/4; 1/4X1/8; 1/4X1/4; 1/4X3/8; 1/4X1/2; 5/16X1/4; 3/8X1/4; 3/8X3/8; 3/8X1/2; 1/2X1/2; |
|
| Tube X Male Pipe (Butt Weld) |
 |
1/8X1/8; 1/4X1/8; 1/4X1/4; 5/16X1/4; 3/8X1/4; 3/8X3/8; 3/8X1/2; 1/2X1/2; |
Barb Compression Fittings
Show Product Specifications
| Sizes Available | ||
|---|---|---|
| Male Branch Tee Swivel |  |
Tube OD 1/4″; Thread N1/8; Tube OD 1/4″; Thread N1/4; |
| Female Connector |  |
Tube OD 1/4″; Thread N1/8; Tube OD 1/4″; Thread N1/4; |
| Male Connector |  |
Tube OD 1/4″; Thread N1/8; Tube OD 1/4″; Thread N1/4; Tube OD 3/8″; Thread N1/4; |
| Male Elbow Swivel Connector |  |
Tube OD 1/4″; Thread N1/8; Tube OD 1/4″; Thread N1/4; |
| Bulkhead Union |  |
Tube OD 1/4” |
| Elbow Union |  |
Tube OD 1/4” |
| Straight Union |  |
Tube OD 1/4” |
| Tee Union |  |
Tube OD 1/4” |
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