Cooolant tank

[BlueBoy-SKO]

How do you get this thing out?
Need to fix the leak but not sure how it comes out. I tried to unscrew it with my fingers. It’s made of glass so I don’t want to grab it with a pair of pliers.
Thanks

 

[BamaBus]

Looks like what you need. https://midwestbusparts.com/product/sight-glass-427708c1/

 

[BlueBoy-SKO]

Bingo! Thanks BamaBus