Great price.This upgrade makes filter changes faster and easier than the old style filter. Thank you for a good product/great price.

very easy to process the order and the price was right

A simple and efficient improvement to an already good product made even better by being priced $14 dollars under Aprilaires own price! I found me a new filter supplier just by making a quick search. Thanks

We have the older Space Guard 2200 Air filter. I decided to order from DiscountFurnaceFilter.com because their prices were much better than I could find locally and they offered reasonable shipping. We chose to buy the upgrade kit and one extra filter.