When and How Often to Change 20x25x5 Air Filter
Determining how often to change 20x25x5 air filter substitutes can be a bit confusing considering that these beefy filter systems aren't like the thin ones the truth is from the grocery store. Many people are used to those skinny 1-inch filters that need swapping each month or two, however the 5-inch deep-pleated versions are usually a whole different beast. Because they will have so much more surface area area, they may hold a lot more "gunk" just before they start to choke your HVAC system. ...