PFA pipe spools have the following nominal liner thickness:
| Sizes | PFA Liner Thickness In. |
Vacuum Rating (in Hg/F) |
| 1" | .113 | FV @ 450°F |
| 1-1/2" | .114 | FV @ 450°F |
| 2" | .114 | FV @ 450°F |
| 3" | .130 | FV @ 450°F |
| 4" | .150 | FV @ 450°F |
| 6" | .145 | Non-Vacuum |
| 8" | .140 | Non-Vacuum |
FV = Full Vacuum
Liner in unpigmented natural color.