Filtrete16x25x1 AC Furnace Air Filter, MERV 5, MPR 300, Capture Unwanted Particles, 3-Month Pleated 1-Inch Electrostatic Air Cleaning Filter, 6-Pack (Actual Size 15.69x24.69x0.81 in)

I use these Filtrete 20x30x1 air filters as part of my Corsi-Rosenthal box setup to help filter out dog and cat dander and hair. The 30-inch length fits perfectly as the vertical dimension, matching well with the 20-inch width of the box fan I use.The filter quality is solid—they’re pleated, durable, and hold up well for the full 3-month recommended lifespan without sagging. There’s no unpleasant chemical smell, which is important since the filters run continuously.In terms of effectiveness, they do a great job capturing pet hair, dander, and everyday dust particles. The MERV 5 rating provides good basic filtration while maintaining strong airflow through my DIY box fan system.The functionality is spot-on for a Corsi-Rosenthal box: easy to assemble, secure fit, and good filtration performance at an affordable price.✅ Ideal size and fit for Corsi-Rosenthal box construction✅ Durable pleated filters with no bad smell✅ Effective basic filtration for pet dander and dust✅ Maintains airflow while filtering well✅ Affordable and reliable for continuous useIf you’re building a Corsi-Rosenthal box or just want a solid basic filter for pet dander, these are a great choice!

Bought the six-pack of Filtrete 18 × 24 × 1 (MPR 300, MERV 5) filters and just put the first one in. It slid right into the return without any bending or fuss—nice to find something that truly matches the listed size.Switched from a “premium” filter that felt like it was suffocating my blower. With this one, the air moves freely again and the house doesn’t feel stuffy. Three weeks in, I can already see it catching dust and pet hair, but the HVAC fan sounds happier and isn’t running as long. Six filters will carry me through roughly a year and a half, so the price per change is easy on the wallet.Simple, does what it should, and keeps the air flowing. Five stars.

Absolutely love these air filters! They’re high quality and work perfectly with my heating and cooling unit. I’ve noticed a real improvement in the air quality in my home since using them—they really do catch everything.I have them set up on a subscription to arrive every three months, which makes things so much easier. No more forgetting to change them. Great value for the money and zero hassle. Highly recommend!

These Filtrete MPR 300 (MERV 5) air filters are my go-to for regular home HVAC maintenance. They strike a great balance between affordability, airflow, and filtration performance. While they’re not designed for capturing ultra-fine allergens, they’re perfect for everyday use—effectively trapping dust, lint, pollen, and pet hair.I use them in a standard residential furnace/AC system, and they’ve helped keep the system running efficiently without straining the blower. They slide in easily and fit snugly. The actual size (15.69x24.69x0.81 in) is accurate, which is important for a tight seal and proper filtration.The three-month lifespan seems accurate for most average households. I usually change them on schedule, and every time I pull one out, it's clear they’re doing their job—plenty of visible dust and debris caught. The 6-pack is convenient and cost-effective, saving me from making repeated trips to the store.If you're looking for a basic, dependable filter to maintain clean air and protect your HVAC system, this is a solid choice. It’s not a high-allergen filter, but for general dust control and system health, it’s excellent.

good price for a set of filters for house a/c. decent quality and materials.

I used to buy my filters at the store but way more worth it for me to get these. I have major allergies so I clean my house and change my filters more than recommended. Been using this for a bit now and no allergy issues. Air conditions is able to run well, filters aren’t suffocating the system, filters are great at collecting dust, and the fit is exact.

Bought these because they were the most economical. We replace the filter (depending on the season) approx. 1 per month or every 3 months. So far it has work very well,since when we remove it, it is very dirty, so that's good. Shows it is working well like it's supposed to. I would recommend these. Easy to install, easy to remove, very worth the money which is economical. You get quite a few for the price and they can last awhile depending on how frequently you replace the filter. Also, my spouse does not sneeze as much during allergy season with these.

I will only order these for us. A good product and not a bad price.