Where to find this heatsink

[queennikki1972]

Sorry if I posted in the wrong area, I wasn't sure where to put it..

I'm trying to locate the tall skinny heat sink in the images or something similar... Not the small one. I have a spot that is very narrow. I do not know the name except that it is to-220 type. Any links or suggestions. I will try to measure it and post size.

[queennikki1972]

30mm tall x 15mm wide x 17mm deep

Found these, but not nearly as thick..

https://www.amazon.com/TOTOT-15x10x30mm-Aluminum-Mounting-Radiator/dp/B07JFWWP9J/ref=sr_1_2?keywords=to-220+heatsink+30x15&qid=1569427870&s=electronics&sr=1-2