14x14 is what I always use but the new ones I bought today are 1/4 inch both ways too big and I cant push it into filter holder. I only use this brand and have never had this happen before. I always give top rating but unless you rectify this made too big for 14x14, I will withhold changing my rating to see how you fix this.

[This review was collected as part of a promotion.] I only buy Filtrete filters for my A/C system. It helps me make it through the tough cedar fever episodes we have in Texas. Pet dander, mold, mildew, super fine particles these filtration systems will keep you and your A/C system healthy.

[This review was collected as part of a promotion.] These 3m filters are my go to for furnace filters. They are just the right materials for my furnace to work great. My family all suffers from allergies and I really think these have helped with purifying the air. I also love that they help rod the air of bacteria and viruses. Would definitely recommend for your furnace.

[This review was collected as part of a promotion.] We were admittedly overdue to change our filter and noticed an almost IMMEDIATE difference in the air. I had been waking up with headaches recently, which have since stopped, and I attribute to allergens that had been coming through the vents from our old filters. We are extremely happy with these filters so far!

[This review was collected as part of a promotion.] I can’t say enough good about this filter. Since using it I’ve noticed a difference in my allergies and quality of air. I feel like I can breathe better and don’t wake up congested as I usually do. I know it’s working for my air purifiers that I keep running throughout my house show that my air quality has improved. These are definitely my new go to filter going forward. I definitely recommend!

[This review was collected as part of a promotion.] I got this because the allergies and the pollen in the air in North Carolina is really really bad at this time. I absolutely love this filter because it does what it says it's going to do which is to 99.9% remove dust and dander and pollen from the air in your home. I highly recommend this and there are numerous sizes to choose from.

[This review was collected as part of a promotion.] The Filtrete™ Ultra Allergen 2X Bacteria and Virus Filter (1600 MPR), 16 in x 25 in x 1 in are great! These high-performance filters helped to improve my home’s air quality. They are durable and definitely help with allergens!

[This review was collected as part of a promotion.] I like that this filter helps asthma & allergy suffers because this is certified for these ailments. I like that this filter should be changed every 3 months. The only thing I think to improve would be to have the filter last for 4 months. This filter easy to install and remove.

Love the quality of this air filter ! Its very sturdy on both sides.

Great product