I ordered three of these and they arrived quickly to my front door. Definitely better than going through my local HVAC company. They wanted the same price I paid for three of these shipped for just one of theirs in stock. This is the third order I've p

I recently purchased 2 Lennox X6670 filters from discountfurnacefilter.com for less than the price of ONE of the same filters from my Heat & Air Company that installed my system. This company is a Godsend for this senior citizen on Social Security! Look n

I ordered two X6670 furnace filters on Tuesday, May 10, 2011 and selected the free shipping option. I received the filters on May 14, 2011. I was very satisfied with the delivery time and the cost of the filters. I was able to purchase two filters for abo

I am very happy with discount furnace. It would have cost me 3 times the amount of money if I purchased the filter through the company from where I purchased my furnace. It was delivered quickly.

In our home we have two people who struggle with allergies. While using the NaturalAire filter these two people continued to have allergic reactions even inside our home. We then switched to the Lennox HCF filter and their reactions have decreased signi

I purchased this filter as OEM for a new High efficiency furnace purchased. A service person who replaced the filter recommended replacement at a high price. Discount furnace had the lowest price and OEM which I wanted to make sure the warranty is not voi