First, locate your furnace air filter.
This one is an easy application. Let me know if you would like other tutorials.
Slide the old air filter out.
Wow! And, I have seen worse!
What does that "arrow" mean??
Mark for future reference. Unless you want to watch this tutorial again.
And, voila! You are well on your way to saving energy! And, remember, that filter is recyclable!
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