Estimated lead times
1 Day
![Calliper main product photo](https://www.fixfast.com/media/catalog/product/cache/3cf72d4c7a492e0403a39e264af2d130/F/O/FO-CALLIPER_1.jpg)
Estimated lead times
1 Day
Calliper to assist in selecting the correct size roof outlet, especially in refurbishment applications. Insert the calliper into the outlet and easily determine the size of the outlet required.
Calliper to assist in selecting the correct size roof outlet, especially in refurbishment applications. Insert the calliper into the outlet and easily determine the size of the outlet required.