Personally i would take it to a dealer for a chain.
These online look ups are ok but are you ordering the right chain?
Is it the right pitch and guage for your guidebar?
A dealer should be able to advise.
If you take your saw in they should be able to dress the guidebar and cut and fit a chain to lenght.
I believe there is only 2chain manufacturers in the world Oregon and Stihl.
Stihl make the best chain imo but can be expensive.
Oregon chain is good stuff aswell.
The other names are old or just oregon badged engineering.
I think oregon have even got rid of the windsor name now :thumbdown: