Did you receive a 5 inch filter when you ordered a 4? No worries! You most likely received the proper filter, but its labelled size may be different than what you're used to.
It might sound strange, but every home air filter is labelled with a "nominal size" that's different from its actual size. For instance, your filter might actually measure 19-7/8" x 24-7/8" x 4-3/8", but still be labelled "20x25x4." However, our manufacturers round that last number - the thickness of the filter - up, instead of down. As a result, even if you order a 20x25x4 filter, it may show up on your doorstep labelled as a 20x25x5.
Try installing it anyway! If it doesn't fit, all you have to do is get in touch with us, and we'll replace it at no charge!
16x25x4 16x25x5 20x25x5 wrong size 4-3/8 3/8 four five
I never received my order!!
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