Aprilaire413 Replacement Filter for AprilAire Whole House Air Purifiers - MERV 13, Healthy Home Allergy, 16x25x4 Air Filter (Pack of 8)

We change our filters twice yearly. Always order these from Amazon. Cheaper than our local stre for identical item.

Excellent fit and filtering, lasts about 6 month, with our 3 cats. Expensive but a quality filter.

Very efficient at filtering out dust and other contaminates from the HVAC system air. Somewhat expensive up front, but it lasts for a full year and is soooo easy to install!

perfect fit and hypoallergenic

TL;DR: I use it. I will buy it again. I recommend it. My 4 stars means 'great product'.(Please note: I reserve 5 stars for over-the-top outstanding; if everything gets five stars it becomes meaningless. My 4 stars is everyone else's 5 stars - it means the product is good, I'll buy it again, and I recommend it. It's does just what I *expect* it to do; no better, no worse. I do the same with standing ovations at plays and live performances, btw... Usually I'll know within a few minutes it deserves a standing ovation; it's beyond expectations.)My favorite way to evaluate something: if I knew then what I know now, would I buy it?This filter: Yes. I would, and will buy it again. I recommend it without reservations.How I installed the filter:Open Amazon package.Pull down attic hatch, unfold ladder steps.Climb up ladder.Forgot filter, have daughter throw filter box up ladder. Miss. Repeat; catching box this time.Crawl over to air conditioner (low ceiling in attic...)Open filter box.Lift cover off air conditioner.Slide old filter out. Ick! Full of dusty and crud. (we got the 410 filter last time; better 413 this time)Open new filter box, slide filter out of it.Pull apart to open it. (accordion-like)Slide bottom piece (slightly) onto air conditioner. Bump nearby chimney so it falls off (filter from air conditioner; the chimney didn't fall off)Slide bottom piece onto air conditioner again.Slide top piece onto air conditioner. (being careful not to bump the chimney again)Push both pieces to slide filter into air conditioner. Slides right in, fits perfectly. (410 did too)Replace cover over the filter.Crawl back to ladder. Toss empty box down to daughter. (don't toss old filter unless you want an upset dust-covered daughter!)Crawl back down ladder, carefully carrying old filter.Put old filter into trash bag.Fold ladder steps up, push attic hatch closed.Put trash bag with old filter in garage. (awesome daughter already put new filter box into recycling bin)Wash hands.Congratulate self on doing a wonderful job. Family stands around smiling and applauding; bask in their adulation. (not didn't happen... - but congratulate self and cross off the 'to-do' task)It took longer to write this - and probably for you to read this - than it took to actually change the filter.Air conditioner is immediately working better - cycling quicker than before. I can't actually tell, but I'm sure our air is cleaner. (that's not a reflection on the filter; more on me...)Make a note to change it again in six months or so. Cheap and easy way to keep the air conditioner working better!Summary:I use it. I will buy it again. I recommend it.

Perfect fit, good price & works as intended.

Great. Works like a champ.

Ease of ordering, competitive pricing, fast delivery

The product was needed for the model purchased. It was very expensive for the product and material.Prefer greater value with a lower price, and will be prepared to replace it more frequently as a a result.the high cost prohibits more frequent replacement as no one really knows the status of the filter until it needs to be replaced.

Great valued air filter. We have 3 cats and this filter does the job well to keep hair and dust in check.

Fits perfectly.

The filter fits perfectly and is a lot cheaper then the ones the furnace company is trying to sell you.

These are the OEM filters for various AprilAire furnace filter systems. I've used these exclusively, and have never had any problems. While they are somewhat expensive, the filters last about 6 months, so the $10-12 per months that it ends up costing is worthwhile to help keep the air clear for our kids.