I have a horizontal Goodman furnace and evaporator coil installed, and I want to know what kind of bracket I can use to connect the two. The installer did a bad job and used tape and mastic to connect the units instead of connecting them with brackets as stated in the installation manual (even states that tape and mastic is improper installation). There is a half inch gap on one side between the units. I need to find brackets to attach the two units together. The install was 8 years ago with my builder, and the brackets are long gone. The installer only has a 2 year warranty. Goodman won't sell me brackets unless I'm licensed. No one seems to sell them online either.
Can I just use galvanized metal straps from the big box store to screw the furnace and evaporator coil together? This is the evaporator coil https://www.alpinehomeair.com/viewproduct.cfm?productid=453057306. It also includes the manual for the install and a picture of the brackets is in the "View All Photos."