Use a cap to close off a tube with a ferrule and internal nut already made up. A cap is essentially a piece of hex stock with a zero volume fitting detail machined into it, but with no through-hole.
| Fitting size | Length of cap | Product No. |
|---|---|---|
| 1/32" | .55" | ZC.5 |
| 1/16" | .77" | ZC1 |
| 1/8" | 1.01" | ZC2 |
| 1/4" | 1.24" | ZC4* |
* Available as a special-order item
