Please recommend an ERV and filter box – GreenBuildingAdvisor

Im looking for an erv or HRV that will tie into the ac for 4 bedrooms of 10″x14″ each

I would like to put a 20×25 merv 13 filter in front of the inlet.

it will be controlled via a smart switch and 02 sensor.

so far, the panasonic intellibalance 100 seems to be a popular choice.

Im looking for recommendations for the ERV and also is there a box I can buy for the filter or do I have to have this made for me by a sheetmetal company? thanks