NA

Great

I like the 4 pack

This filter is restricting airflow. Our return air is so loud when our gas furnace is running. Also we hear a thump a few seconds after the furnace kicks off. Not sure what the deal is.

We've used lower rated Filtrete filters that work well. I bought the Ultra because the others were out of stock. If you buy any Filtrete filters, I recommend changing them before your system shuts down from lack of air flow. They are that good!

We shopped around buying filters from different stores, buying filters online through subscriptions. Not only are they more expensive the Quality is not the same. With a membership We get 4 filters for the price of 1.

Just bought the 14x30x1 merv 12, it is full size, therefore will not fit into wall slot. It should be at least 1/8" smaller all around. Dissappointed, package states it is 13 13/16 x 29 13/16, it is NOT.

It is a good filter, but I’ve been told now by three different air-conditioning companies that they are too hard on your air condition unit and it makes them work too hard and to go to a lower grade.

These filters are the best I have used. They get pet hair, dirt and dust although I have cats and dogs so I actually change my filter every month but it does cut down the dusting

These filters are a huge improvement over the standard filters we have been using. The air is noticeably cleaner and no particles or cat dander whatsoever.