Hand-Bendable Extensions are equipped with 2 lock nuts and 3/4 inch hex sealing nut. A Teflon gasket seals on end of valve, the lead seal in the sealing nut is forced into the threads for a second seal, positively locking extension to valve. Cap and core not included. They should be removed from valve and transferred to extension. The extension should be anchored to rim.
| HALTEC NO. | EFFECTIVE LENGTH | |
| INCH | MM | |
| 753S-3 1/2 | 3 1/2 | 89.6 |
| 753S-4 | 4 | 101.6 |
| 753S-4 1/2 | 4 1/2 | 114.3 |
| 753S-8 | 8 | 203.2 |
| 753S-9 | 9 | 228.6 |
| 753S-10 | 10 | 254 |
| 753S-11 1/2 | 11 1/2 | 292.1 |
| 753S-12 | 12 | 304.8 |
| 753S-13 1/2 | 13 1/2 | 342.9 |
| 753S-16 | 16 | 406.4 |
| 753S-17 | 17 | 431.8 |
| 753S-17 1/2 | 17 1/2 | 444.5 |
| 753S-18 | 18 | 457.2 |
| 753S-18 1/2 | 18 1/2 | 469.9 |
| 753S-19 | 19 | 482.6 |
| 753S-20 1/2 | 20 1/2 | 520.7 |
| 753S-21 | 21 | 533.4 |
| 753S-21 1/2 | 21 1/2 | 546.1 |
| 753S-22 1/2 | 22 1/2 | 571.5 |
| 753S-23 | 23 | 584.2 |
| 753S-23 1/2 | 23 1/2 | 596.9 |
| 753S-24 1/2 | 24 1/2 | 622.3 |
| 753S-25 | 25 | 635.3 |
| 753S-29 1/2 | 29 1/2 | 749.3 |
| 753S-32 | 32 | 812.8 |