you would need to speak to your ac contractor they supply thanks

I am the hvac contractor. I was trying to figure out where the vent seen here was purchased.

You must be kidding. You are an A/C contractor and have never heard of linear diffusers? Glad your not my contractor. These are not just grills. This system has to be installed at the rough in. You cant just pop them in.

Nope thankfully I didn’t have to know about linear diffusers to get licensed. They just required knowledge of less important things like air flow, load calculations, science of heat gain/loss, etc. Anyway thanks for your post as it was actually very helpful.