× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Home HVAC
Posted to Open Discussion Forum on 6/2/2021

I agree with upgrading to 4" filter. We have two 4" thick filters at the furnace (one on each return trunk). It works well. Login to read more.