You would know that you should change your A/C filter and furnace filter every couple of months. Generally, it is recommended that you replace a 16x25x1 furnace filter at least every 45-60 days. However, in certain cases, the replacement may need to be sooner. For instance: You should change...   You would know that you should change your A/C filter and furnace filter every couple of months. Generally, it is recommended that you replace a 16x25x1 furnace filter at least every 45-60 days. However, in certain cases, the replacement may need to be sooner. For instance: You should change...

Choosing a replacement furnace filter might not sound like a difficult task, but when you look at the numerous options available, your decision may suddenly become surprisingly complex and confusing. The easiest choice is to get an exact replacement of what you already have. But is that costing you more... Choosing a replacement furnace filter might not sound like a difficult task, but when you look at the numerous options available, your decision may suddenly become surprisingly complex and confusing. The easiest choice is to get an exact replacement of what you already have. But is that costing you more...