| Size: | 1" |
|---|---|
| Material: | Iron |
| Thread Type: | Female |
| Connection Type: | Threaded |
the length is 2 1/2"
Yes it will raise the riser height, but it may or may not be the exact height that you need. I used one where I installed 3/4 hardwood floor the extension raised the riser and thus the valve more than 3/4 inch, used spacers under the radiator feet to adjust