Duo95 vs EVA 4ID: specs compared
Updated 05 September 2026.
9.5 mm
Duo95 wins on tube outer diameter
On tube outer diameter, Duo95 leads: 9.5 mm versus 8 mm.
| Spec | Duo95 | EVA 4ID |
|---|---|---|
| Designation | 9.5 mm (3/8") OD | 4 mm ID / 8 mm OD |
| Size / thread | 9.5 mm (3/8") | 4 mm inner diameter, 8 mm outer diameter double-wall EVA line |
| Fitting form | push-in collet, metric | double-wall EVA beer / gas tubing |
| Seals on | double EPDM O-ring on the tube outer wall | the 8mm OD is what a Duotight 8mm or John Guest 5/16 collet grips |
| Rating / role | EVABarrier 6.3mm ID x 9.5mm OD tube; fitting burst over 300 psi at 25 C | low gas permeability line matched to the 8mm push-in size; fitting rated to 100 psi, tube burst well above |
| Tube OD | 9.5 mm | 8 mm |
Questions and answers
Which has the higher tube outer diameter, Duo95 or EVA 4ID?
On tube outer diameter, Duo95 leads: 9.5 mm versus 8 mm.
How do Duo95 and EVA 4ID compare?
On tube outer diameter, Duo95 leads: 9.5 mm versus 8 mm.