I think Cody might be able to DIY this thing.
One of the biggest mistake people make is they dont poor bleach into their drain. I do it at least 3 times every summer so that the algae doesnt clog the drain.
Yep cheapest available
Yep cheapest available
It may look cheap but it’s a million times better than the crap you had before. If you change that out monthly it will work just fine.
Also, those "crap" filters aren't that bad if you change them monthly. I use them in my house. If you have allergies or experience a lot of dust everywhere, you can opt for the more expensive ones, but understand that since they filter more particles out of the air, they will clog quicker, meaning they will need to be changed more often. But you will benefit from the more expensive ones if you have allergies or are sensitive to dust.
But the main goal of the filter is to catch particles that are large enough to stick to the coil and restrict the air flow. Restricting the air flow too much by using too tight of a filter can cause problems too like slowing the air flow to the point that the coil gets too cold and freezes up.