Stainless Steel Compression Fittings & Barb Compression Fittings
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
Stainless Steel Compression Fittings
Branch Tee
Sizes Available (Standard)
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″
Sizes Available (Metric)
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
Sizes Available (Standard)
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″
Female Branch Tee
Sizes Available (Standard)
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″
Male Connector
Sizes Available (Standard)
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″
Sizes Available (Metric)
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
Sizes Available (Standard)
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″
Sizes Available (Metric)
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
Sizes Available (Standard)
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″
Bulkhead Union
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 6mm
Elbow Union
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 6mm
Tube OD 10mm
Tube OD 12mm
Straight Union
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 4mm
Tube OD 6mm
Tube OD 8mm
Tube OD 10mm
Tube OD 12mm
Tee Union
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 6mm
Tube OD 8mm
Cross Union
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Reducing Union
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 3/8
Tube OD 1/2
Cap
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Back Ferrule
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 4mm
Tube OD 6mm
Tube OD 8mm
Tube OD 12mm
Front Ferrule
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 6mm
Tube OD 8mm
Tube OD 10mm
Tube OD 12mm
Nut
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 6mm
Tube OD 8mm
Tube OD 10mm
Tube OD 12mm
Plug
Sizes Available (Standard)
Tube OD 1/8
Tube OD 1/4
Tube OD 5/16
Tube OD 3/8
Tube OD 1/2
Sizes Available (Metric)
Tube OD 6mm
Tube Stem Reducer
Sizes Available (Standard)
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)
Sizes Available (Standard)
1/8X1/8
1/4X1/8
1/4X1/4
5/16X1/4
3/8X1/4
3/8X3/8
3/8X1/2
1/2X1/2
Stainless Steel Barb Compression Fittings
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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