John Guest metal adapter for 3/8" × 1/4 FFL head
Metal adapter to connect a 3/8" (9.5 mm) tube line to a component or coupler that uses a 1/4 FFL thread.
When to use it
It is suitable when you want a direct transition between the push-fit line and a 1/4 FFL connection, which is common in certain dispensing accessories.
Selection
Confirm that the tube is 3/8" and that the threaded connection is 1/4 FFL. Do not select it for MFL, NPTF or BSP unless there is a specific additional adapter.
Installation
Depressurize the system, assemble the threaded side without forcing and prepare the tube with a straight cut. Insert fully to the stop and check for leaks.
Maintenance
Monitor the condition of the tube next to the fitting and avoid lateral stresses caused by hoses that are too short or misaligned.
Frequently asked questions
What tube size does it use?
3/8".
What thread does it have?
FFL 1/4.
Is it an adapter for a coupler?
Yes, it is intended for that type of compatible mounting.
What should be checked before installation?
Tube size, thread standard and mechanical alignment.
