Hole spacing compatability of Watercool Heatkiller GPU-x3 Core

Anyone have one of these blocks to hand to measure min/max hole spacing?
For the life of me I can't find any mention of this anywhere even though you'd think that would be one of the most important specs to list for a unviersal gpu block, even the cheapo ebay blocks list it these days. I know it's long been EOL (so not included in Watercool's otherwise very helpful compatability list) but there are still some avaliable

 

You want the final page of the manual.

https://www.manualslib.com/manual/1673632/Watercool-Heatkiller-Gpu-X3-Core-Series.html?page=8#manual

 

Ah thank you! Don't know how I missed this on my hunt, tbf the support page on watercools website leads to the manual for an rx5700 block instead of the universal block