Rack mount ears for Zyxel GS1920-8HPV2 switch

[nikleb]

I have a Zyxel GS1920-8HPV2 switch.

Zyxel GS1920-8HP 8-port GbE Smart Managed PoE Switch | ZyxelGuard.com

www.zyxelguard.com

I like now to rack mount. I found out form here that there was a Zyxel bracket kit 1-004-05900006:

https://support.zyxel.eu/hc/en-us/articles/4405555634706-Which-Rack-Mount-Kit-for-my-Zyxel-Product-

However, I can't find it to buy.
Are there universal ears that could fit?
The device is 267mm wide (10.51")