| Brass extension piece | Item No. | Size |
| ·Forged or casted | 2722.01 | 1/4"x1/8" |
| ·Natural colour | 2722.02 | 3/8"x1/4" |
| ·Bronze material on request | 2722.03 | 1/2"x1/4" |
| ·Female x male | 2722.04 | 1/2"x3/8" |
| 2722.05 | 1/2"x1/2" | |
| 2722.06 | 3/4"x3/8" | |
| 2722.07 | 3/4"x1/2" | |
| 2722.08 | 1"x3/8" | |
| 2722.09 | 1"x1/2" | |
| 2722.10 | 1"x3/4" | |
| 2722.11 | 11/4"x1" | |
| 2722.12 | 11/4"x11/4" |