OUR VERDICT
A compact automatic 1/4" industrial coupler. Same push-to-connect action as the full-size automatic in a slimmer body that is easier to handle on a tool or in a tight corner. Industrial-style plugs only.
WHAT WE LIKE
- Made in the USA by Foster, heavy-duty industrial grade
- Push-to-connect automatic action
- Slim body is easier to grip and fits tight spots
- USA-made Foster G-line
WORTH NOTING
- Costs more than the manual coupler
- Pull the sleeve back to release
Specifications
| Series | 3 Series |
|---|---|
| Temperature range | -40°F to 250°F |
| Max working pressure | 300 PSI |
| Interchange | Industrial Interchange (I/M) |
| Component | Coupler (socket) |
| Body size | 1/4" |
| Body material | Brass |
| Seal material | Buna-N (NBR) |
| Socket action | Automatic (push-to-connect) |
| Valving | One-way valved |
Industrial Interchange (I/M) — also sold as Milton M-style / Type D. Any brand's plug or coupler in this profile fits this part. Not compatible with ARO or Tru-Flate.Full interchange lookup →
Complete the connection
This is a coupler (socket) in the Industrial Interchange (I/M) profile. It only mates with Industrial Interchange (I/M) plugs (nipples) — any brand.