It fits correctly!!!
Solid reliable replacement filter. Fits perfectly and was well packed for shipping. Read more
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In Stock
In Stock
| is_discontinued_by_manufacturer | No |
|---|---|
| product_dimensions | 11.5 x 1.75 x 14.75 inches; 1.2 Pounds |
| item_model_number | 12 |
| department | HVAC |
| date_first_available | August 23, 2006 |
| manufacturer | Research Products Corporation |
| best_sellers_rank | #23,160 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #77 in Humidifier Accessories |












Product video 1
Customers say
Customers find the humidifier filter fits perfectly and is an exact replacement for their whole-house unit.
Solid reliable replacement filter. Fits perfectly and was well packed for shipping. Read more
After living in my new house for over a year we discovered the humidifier had been off, so we turned it on to help fight the dry winter air. A few hours later we noticed water leaking from our older Aprilaire 224 unit. This started the project of me figuring out what the problem was, having to rebuild leaky copper compression fittings at sealing the drainage on the unit itself. Since I had no idea if the previous homeowners did any sort of maintenance on the unit I figured it was long overdue for a new water panel. I ordered this as itβs listed to fit my model 224 and it fit perfectly. Install of the water panel was the easiest part of my unit repair. Now my humidifier is running like a dream and adding needed moisture back into the house. Will repeat buy as the suggested replacement schedule is yearly. Read more
Quality product that is easy to install and a great value. Read more
You'll need to loosen the clips holding the outside of the humidifier to your furnace, probably remove a screw holding the air return to the unit, move the water inlet, open the unit, do not wipe the bottom inside, swap out the filter, and reassemble. Takes a little time in a cramped space behind my furnace. Read more
I built a humidifier for my huge humidor using a 6" deep full size restaurant pan and lid. It utilizes three 4" fans and a ultrasonic fogger inside. But I needed a baffle after the fogger and before the exhaust. This "panel" was the perfect size when cut in half. I siliconed some supports in place and now this baffle can be replace in minutes. Now I get humidity and not mist out of my humidifier. Read more


needed it and it fit Read more
Correct parts are getting harder to find for my older unit. Just drops right in. Read more
No problems with this product. It fit, and functions, just like it is meant to. Good value. Read more