Tag: replacement air filter

Ever stared at your dirty air filter and wondered what size to get? This article shows you exactly how to find the right air filter size for your home system. Learn the difference between nominal and actual sizes, and find out what those numbers on your old filter mean. Pick up tricks to avoid common mistakes, and get answers to questions like, 'What if my size isn't available?' Buying a new filter doesn't have to be confusing or expensive.