Filterbuy 20X20x5 Air Demon Compatible MERV 11 Air Filter

Excellent choice, great price.

I am very happy with the entire experience. My filters are good quality and USA made. Customer service is amazing! It's a huge bonus to have a subscription service.

Picked up the Filterbuy replacement filter for my Lennox HV/AC system to replace the MERV 16 one which was causing an issue with excessive backpressure. New filter has over 20% higher throughput at a much lower cost. Filterbuy filter also have a much sturdier design at an unbeatable price!

So far so good! They fit as good as the name brand filter.

Excellent customer service, very friendly phone personal really appreciated