| Part Number | Tube Size | L |
|---|---|---|
| NH1681X100X | 1.000 | 2.250 |
| NH1681X125X | 1.250 | 2.500 |
| NH1681X138X | 1.380 | 2.620 |
| NH1681X150X | 1.500 | 2.620 |
| NH1681X200X | 2.000 | 2.880 |
| NH1681X250X | 2.500 | 3.380 |
| NH1681X300X | 3.000 | 4.000 |
| NH1656X300X | 3.500 | 4.000 |
| NH1656X350X | 4.000 | 4.000 |
| NH1656X400X | 4.500 | 4.000 |
| NH1681X500X | 5.000 | 4.000 |
