Aerostar 20x25x4 MERV Pleated Filter Reviews Summary

Filter Quality and Construction

Pros:

• "The cardboard frame is securely glued together on all corners and seams."
• "Filter media on 1st installed filter was well constructed and 'glued' along the perimeter well."
• "They are made of good material - meaning, the cardboard is thick (not paper-like), and there is good quality to the non-woven (the fabric-like material)."
• "These filters have an easy installation process."
• "They fit perfect and seem to be working really well."
• "The filters are solid, effective, and long lasting."
• "These filters have a Minimum Efficiency Reporting Value (MERV) rating of 8."

Cons:

• "The filters are not dimensional correct for unit housing. Advertised sizes are not correct. Too small."
• "These are not the size advertised, they are 1/2 -3/4 smaller than the headline size."
• "The cardboard frame of the filter is so thin and cheap now that the filter is hopping around inside of the filter slot."
• "The filter is made cheap and the cardboard is made thin and not always glued so filter will break easy."
• "I've ordered these in the past and was quite satisfied..this order had 4 of the 6 filters misaligned."
• "The card board seem to be very thin."
• "I understand these are low cost filters but the filter is not even in contact with the cardboard much less glued to it."

Price and Value

Pros:

• "For the price they are a bargain."
• "They perform as well as the filters from the big box stores, and they are half the price."
• "Great deal for these as stores charge a fortune for just 1."
• "These are really nice filters that are better than what you typically find in the large retail stores and at a great price."
• "Air filters are so expensive at department and hardware stores and this is a great deal on Amazon."
• "You know what is cheaper than buying things as a single unit? Buying things in bulk."
• "Great way to order a year's supply at a great price."

Cons:

• "I took off one star because of the price."
• "Do not buy! Even with the subscribe and save price of $6/filter, they are not worth it."
• "I just opened the box 1/15/24 and took one out and it is nothing like the previous ones. They are flimsy and way over priced considering what you get."
• "Just found it little expensive. Home depot sells for less."
• "This is the cheapest, most worthless product I have ever purchased from Amazon."
• "These cost $10 more than 3 years ago and are half the quality."
• "And then they charge you more for it!"

Fit and Size Accuracy

Pros:

• "They fit perfect and seem to be working really well."
• "Easy to put in - because they're smaller than other 18 x 18 filters we've used."
• "I like the merv 8 for my older Carrier heat pump. It is supposed to be 16x20 but these fit better with less room around the edges for unfiltered air to enter."
• "Could not find this size filter at my local Home Depot or Lowes- It’s an odd size. Purchased this pack and they fit to a 'tee' highly recommended."
• "They are only about 2 1/2” wide not 4” like described."
• "These filters are true to size and fit my ceiling openings perfectly."
• "They're definitely a little smaller than the one I replaced but still perfect."

Cons:

• "The filters are not dimensional correct for unit housing. Advertised sizes are not correct. Too small."
• "These are not the size advertised, they are 1/2 -3/4 smaller than the headline size."
• "These filters are smaller than all other 20X25X4 filters I've purchased including Honeywell and Filtrete filters."
• "I replaced my furnace filter for the first time and purchased these. They seem to be good quality but they are about ½ inch too small from top to bottom."
• "My HVAC unit clearly says I need 16x20x1 air filters. So that’s what I purchased. They are too big."
• "Compared to the other 20x20x1 filters with an equivalent MERV rating, I find this brand to be flimsy and prone to becoming concave."
• "I bought the 16 X 24 X 1 filter the size is about an inch short really measuring at 15 X 24 X 1 leaving air to go around my filter."