Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

It did help with reliefing my daughter's allergy.

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

I have to replace my filters every 3 months due to my dogs and I generally pay $75 per filter so I was very excited when I found these filers at such a great price!!!

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

Merv 10 vs. Merv 9 for less price. great deal [...]!

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

Easy to order.[...] Product is excellent.

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

Ordering was easy.[...]. Quality is great.

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

Filter is exact replacement for the Lennox OEM product. Fits properly in the filter unit. 2 pack is individually wrapped, so the 2nd filter will be 'fresh' when I need it this spring.

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

Great price [...]

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

I cannot find this product at a lower price either locally or online. The product arrives promptly and in excellent condition-it is easy to install, fits perfectly, and performs well.

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

The filters that I purchased were the right size and they were very competitively priced. This filter is a special order filter because of the Lennox add on to our heating and cooling unit. [...]

Comments about Lennox Replacement Filter X6664 (75X74) for PCO-12C - 17 x 26 x 4:

I use this filter to keep the air clean for my wife who has breathing problems.