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Coupon Abbreviations
  • SC = Store Coupon
  • MC = Manufacturer Coupon
  • SS = Smart Source
  • RP = Red Plum
  • PG = Proctor and Gamble
Coupon Terms
  • WYB = When You Buy
  • B1G1 = Buy One Get One Free
  • .75/1 = 75 cents off one item
  • .75/3 = 75 cents off three items
  • EXP = Expiration Date

Going Nuts? I can help you understand coupon terms and abbreviations

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Today only, get a 4-pack of Honeywell air filters for only $22.99 (reg. $42) at Home Depot! That is only $5.74 per air filter!

Every home needs air filters, so don’t miss out on this great way to save at Home Depot!

Deal is available today only or while supplies last. Limit of 5 per order. Shipping is free.

Trying to decide which ones to buy?

Here’s what I found so we can all make more informed decisions when stocking up on air filters:

Air Filter Size
The easiest way to find out what size you need is to go check the one you have right now. I wrote it down and emailed it to myself just in case I ever forget. Now I can look it up instead of going back through the trouble. This is especially important if your AC unit is in an out of the way place like a crawl space or basement.

FPR Rating

In doing my homework, I learned that you could sort the air filters by their FPR rating, but apparently this is a metric that Home Depot uses try to compare the products. It really doesn’t mean a whole lot though and you are better off choosing based on the MERV index.

MERV Rating
Merv stands for minimum efficiency reporting value. This is the industry rating that tells you the level of filtering you can expect. The higher the number, the more efficient it is at removing particles from the air. The scale is 1-16.

Anything above an 8 is considered a “commercial” application so don’t let them up-sell you on a more expensive filter with a MERV of 12 because it’s not really going to do much for you.

I needed a 16x25x1 air filter and there were 15 options to choose from on HomeDepot.com. After comparing the price per filter to the MERV and FPR ratings, I found that although the price seemed to go up with FPR rating, the MERV ratings on most of the filters are actually the same… I could choose a MERV 6 for $3 a filter or a MERV 11 for $5-$8 per filter. I’ll let you guess which one I picked!

See more online shopping deals.

    • Michele

      I can’t find the filters you purchased for $3.00 each. I see a four pack with a merv 6 for $31.96

    • jean

      I see a 2 pack for $19.98(for the size I need).

    • Janice

      All the added info made this a little confusing. You can only get this deal if you need 20x20x1, level7 filters in a 4 pack. All others are regular price.

      • pdnr

        I got 14×20 on sale, just click through the different sizes offered at the bottom of the page.

    • kguffey

      Go to the Home Depot site and there is a daily deal that you click on. Its for the Honeywell filters. It a really good buy. I got a four pack for $22.00, with free shipping. I got a little over $19 off of the ones I needed. Thanks!

    • pdnr

      Thanks, I got 4 packs for a total of 16 filters for less than $100 including tax. That’s only a one year supply for me because my house requires 4 filters each time I change them. I’ve been buying them for $10 each when they’re on sale so this is a savings of $60 for me for one year.

    • Lisa

      Lat time i tried to order filters from Home Depot, they ended up being back ordered so long that they eventually just cancelled my order.

    • Gayle Meagher

      I so wish we could have one days notice instead of them just giving us one day to shop. Sometimes I don’t ck my email until night. oh well tks for all your hard work.