Furnace/Central AC Filters

[BHC]

I purchase six at a time, MERV13. Found a great deal from here, plus online discount code for 20% off

https://www.airfiltersdelivered.com/

[nmc02]

Do as you wish, but sometimes the most restrictive filters are too restrictive.......especially for AC

[BHC]

Merv13 is just fine for home use, in fact it catches far more particles causing asthma,  allergens,  etc.  

[KEITH STONE]

Cheap filters are the best.Just change the more often.

[BHC]

I use to use Filtrate brand. 

When i had the old unit replaced my friend told me use merv13 but stay away from name brand paying more on the name, 

[Jim_]

27 minutes ago, nmc02 said:

Do as you wish, but sometimes the most restrictive filters are too restrictive.......especially for AC

That's especially true for systems like mine that take the thin 1" thick filters. If I had a need for such high filtration, I would need to buy higher quality/more expensive filters that would still have good air flow. But, my home doesn't need it, anyway.

[Nanuk]

Decent filter with 8 or less merv rating  improves air circulation back to the unit which keeps the unit from overheating during heating season and freezing up during cooling season . Just my experience. I use Home Depot brand 1” filter change with every mortgage payment . 

[BHC]

Never had issues with merv13 in 15 yrs

[CJ3a]

It’s how the system was designed to start.  I have been buying from https://www.supplyhouse.com and have been happy with the service.