Nordic Pure16x20x4 (15_1/2 x 19_1/2 x 3_5/8) Pleated MERV 12 Air Filters 2 Pack

Interesting how I used to get 4 of these filters for the price I bought 2.......... Seam to be made with the same quality too. How is that federal minimum wadge going for you?

Just overall great quality! Keeps the house nice and fresh!

Best price without losing a high filtering ability

Conditions: a multispeed updraft furnace with an A/C coil and an air exchanger, two cats, central vacuum, and our ductwork has been professionally cleaned every couple years. Our ductwork was originally built to take just a single 16 X 20 X 1" filter. We have our furnace blower set to run on medium low for constant circulation, medium high for heat and high for A/C. I tried everything from cheap MERV 7 Store Brand filters to washable to expensive Filtrete Allergan filters to control dust. The cheap filters and the washable filters all let too many fine particles pass through undeterred, the expensive filters began to restrict airflow dramatically after just a couple weeks. After speaking to a reputable mechanical contractor I followed their advice and modified the ductwork to take a 4" thick filter. This worked much better with a 4" filter lasting over 6 months before it started to restrict airflow. After studying the used filter it became obvious that what I needed was a prefilter to remove the coarse particles and cat hair before the main filter. I opened up my ductwork one more inch and added the washable WEB ECO filter I had previously purchased. This is a great combination I just rinse the washable filter once a month when I rinse the air exchanger filters, takes about two minutes. The MERV 15 Nordic Pure filter is going to last at least a year in this configuration happily catching most every particle that gets through the washable filter. We have black granite on our counters and hearths and since I hit on this combination dust and dusting have disappeared. So excellent performance at a low ongoing cost, now that is a value proposition.Update April 2017: See additional photos below after using this single 4 inch filter for 18 months in combination with a washable filter it was finally indicating a restriction of about .5 inches of water vs about .2 inches of water when brand new. In comparison on my system a high MERV Filtrete would start out about .3 inches of water but be over an inch of water in less than a month. I posted some additional pictures and while the filter element is now a uniform gray I can still see light through it. It is also apparent the filter has been catching just small particles with the gross dust going down the drain when the washable is cleaned.

Filters are fine, they work as intended and fit my unit. There are a ton of size and quantity options. Lately when I have ordered these, I receive either the wrong filter or quantity and have to do a full return to have it corrected. This has happened a few times now. No idea if it is an Amazon fulfillment or seller issue, but at least Amazon is great about the return process.

The actual dimensions are smaller than a regular 16x20x4 filter. This one is 3 1/2" deep where the honeywell one is 4 1/4". Built good but not as much filter area. The other dimensions are slightly smaller also meaning that it does not fit as well either.

Perfect for my weird sized furnace lol!

This filter has a MERV 13 rating which they equate to an MPR rating of 2200. That means this filter is comparable in performance to the Filtrete Premium Healthy Living series air filters. The construction is comparable as well, with a cardboard scaffold on the intake side and a wire mesh scaffold on the furnace side for structural support. The pleats fit snugly against the inner cardboard frame, although they are not sealed to the cardboard frame with caulk/glue.Note that the filter size in the title is not the actual size but the size that the furnace would generally list as the required filter size. The actual filter dimensions are given in the product information.Finally, a word of advice on filter sizes: Always purchase the thickest filter your furnace can accept! If your furnace can accept either 1" or 2" filters, always purchase a 2" filter! Why? Because with pleated air filters the surface area of the filter media is greatly increased as you increase thickness, while the cross-sectional area remains the same. This means that air resistance is significantly reduced with larger filters sizes, leading to improved air flow and increased filter lifetime. With MERV 2 filters this makes no difference because those filters are generally see-through and merely protect the furnace components instead of actually filtering the air. However, the air resistance generated by MERV 13 filters is significantly higher, and therefore if you can get a thicker filter you absolutely should. Our furnace technically only accepts 1" filters, but it's designed in such a way that we can just lay the 4" filter on top of the intake and it works fine. Air flow has never been better and since I have allergies the MERV 13 filter media helps a lot.Another tip: If you have issues with food or pet odors, cigarette smoke, etc. and MERV 13 media does not reduce it to acceptable levels, you can find some very cheap cut-to-size carbon prefilter media on this site and others and simply lay this over your pleated filter media, securing it if needed. This is an effective and CHEAP way to get rid of household odors.

First time replacing the filter at this house. Couldn't find this size at local hardware stores. This was $18.50 when I got it. Price shot up to $65 now. Funny enough looks exactly like my old one.Only way I could tell it was Merv 15 was marking on the box it shipped in. It's not marked anywhere on the filter itself. Would buy again if the price goes back down

I purchased this filter for my HRV filter box.16x20x4 size is harder to find in the big box stores.Price is about the same.With Prime membership it is worth ordering these filtersI really wanted a MERV 15 but couldn't justify the extra cost ( dounble )

good price , not the best filter on the market but a good value for the price, not the most popular size, most hardware stores do not have this size so it was very convenient to find this at amazon

good quality, fast delivery and reasonable price compared to my HVAC service provider

High quality and not a common size to find so this worked excellent in our system.