Can you suggest a sidewall grille make/model that would be suitable for my application? The problem I have run across, at least with the people that I have dealt with, is that most installers don't have any engineering data to back up their product recommendations. They just want to slap something in and go.
Hart & Cooley has so many model numbers that it is hard to find a supply diffuser that is suitable for my application.
Is there another diffuser manufacturer that provides engineering data that I should consider?