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Aprilaire Water Panel 12

Aprilaire Water Panel 12 is the heart of your humidifier, designed specifically by Aprilaire for your Aprilaire humidifier; it delivers the proper humidity to your home whenever you heat your home. Replace annually for peak performance. The Aprilaire water panel 12 fits Aprilaire Humidifiers 440, 445, 445A, 112 and 224.

  • Water panel 12 dimensions are 11 1/2” x 14 3/4” x 1 ¾”

  • Replace annually

  • Designed to last entire heating season

  • Aprilaire engineered quality and reliability

Buy Now
Total: $

Right Choice

Get it straight from the source!

  • Genuine Aprilaire replacement parts made by Aprilaire in Wisconsin U.S.A.

  • Made specifically for Aprilaire humidifier for best fit and performance

  • Interested in keeping your humidifier operating like new? Why not order a maintenance kit?




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Posted By:
  • Water Panel Evaporator

    Posted by: ccatalano


    I was able to determine the correct panel on the Aprilaire site and ordering was simple as was the installation.

  • Aprilaire Panel Evaporator

    Posted by: Mary Ann


    This Aprilaire is just the greatest for putting humidity in the air. Dealing with Aprilaire is also great. They work with you, give you deals when you buy in quantity and have fast delivery. I would highly recommend them to anyone.

  • #12 Aprilaire Water Pane, Evaporator

    Posted by: Brian Blanchard


    Excellent follow-up, ease of web site and fast delivery

  • quality comment

    Posted by: Anonymous



  • just as the doctor ordered

    Posted by: impk


    very smooth transaction...filters were sent quickly and were exactly as advertised. would recommend this method of purchase and i will be using again

  • Water panel evaporator

    Posted by: Bob


    the panel arrived in a timely matter. The part fit well and I'm very pleased with the service.

  • Water Panel #12

    Posted by: wmh


    Product arrived in a timely manner. No complaints whatsoever, and installation was straightforward. No complaints with the excellent service that was provided.

  • aprilaire water panel

    Posted by: steinfortr@fuse.net


    very fast service got just what i needed no problems

  • aprilaire humidifier works well with annual service

    Posted by: Steve


    I put in a new panel and orifice each year and the humidifier works well

  • Feedback

    Posted by: Terry Applegate


    Order entry was easy and delivery was speedy. 100% satisfied with the procedure, price, and service. Will use your service in the future.

  • Aprilaire Water Panel Evaporator #12

    Posted by: Buyer


    Product arrived in a timely manner. No complaints whatsoever.

  • Online Order of Aprilaire

    Posted by: Mike


    It is so nice to just find a product online and place the order and in a few days it arrives. Lowes no longer carries them. My only disappointment was FedEx. They said it would be here on a Wed, then it shows up one Thurs. I'm still quite satisfied with Aprilaire.

  • Water panel

    Posted by: rholmes


    Thanks for your quick shipment of the water panel I ordered. Easy to put in and way cheaper than buying from local HVAC companies.


    Posted by: Ron - Connecticut


    Ordering and receipt of this product was so easy and saved me money and time because I did not have to schlep to the parts dealer which is not close by. THIS COMPANY ROCKS - this unit is 9 years old. After I got the panels I was cleaning the unit and the tiny pump impeller broke. I almost did not ask Aprilaire if a replacement was avaiable, but I did. It is obsolete and not sold but they found one and sent it to me at no charge! They could have sold a new unit now but they did the RIGHT THING. I am an Aprilaire customer FOR LIFE!

  • Quick service!

    Posted by: Eva F.


    The filter was at our home within two days! Thanks for superior service!...and it's just the part we needed!

  • Feedback

    Posted by: Michael Morales


    Extremely pleased with transaction

  • new aprilaire filter

    Posted by: Mike from ohio


    good product...shipped fast...I am asatisfied customer

  • Oct, 1 2012

    Posted by: phibar107 @optonline.net


    Serivice time was exceptional .Your rep on the phone was most knowledgable and competant.

  • Replacement water panel

    Posted by: Anonymous



  • Promo too late

    Posted by: Anonymous


    You sent me an email to remind me to order new humidifier and air filter elements. I ordered them at standard price and 2 weeks later you sent me a discount promo for the same elements. As a result, I paid full price when I could have received a discount if I waited. Not happy about that

  • Part #12 Water Panel

    Posted by: RLandon


    Easy to find, order. Shipped as described. Only issue is the price is a bit high. Nice to know the factory still supports the product.

  • WPE

    Posted by: Eric


    Part fits just like the original!

  • water panel evaporator

    Posted by: Anonymous


    good product, very fast shipping.

  • jsm

    Posted by: Anonymous


    everything worked out perfect thanks

  • Recommendation

    Posted by: Pat Sandfox


    The delivery was increadable, it seemed it was here the next day. My Aprilaire furnace humidifier has been neglected for years. I replaced the evaporator pad, the in line filter, and the flow regulator.It is working fine now. I am very pleased with your products and delivery. I will be back.

  • replacement water panel

    Posted by: mike m


    ordered 2 replacement water panels,both fit perfect,items came quickly,good communication about the items,working fine thanks

  • Fast & convenient

    Posted by: Glen


    Great service which was timely and convenient. Thanks!!

  • Water Panel

    Posted by: richard


    Very pleased with the product and the fast service. Thank you.

  • Water Panel Evaporator

    Posted by: JK


    Quick, got it the next day and it was free shipping! Exact replacement part. Will order again.

  • Good stuff

    Posted by: Anonymous


    Product fits right and appears to work as expected. Perhaps a little pricey, but it's nice the part is still available for a humidifier built in the '80s. Nice job, Aprilaire.

  • Quick Delivery

    Posted by: Anonymous


    Surprised to receive the part the next day!! Thanks!

  • Water Panel Order

    Posted by: Linda Boston


    Excellent company to order from. Order shipped in a timely manner and arrived quickly. Have never had any problems with my orders from Aprilaire!

  • Post

    Posted by: Anonymous


    Arrived timely and what I needed.

  • Water Panel Evaporator

    Posted by: jc446


    Easy to order, arrived in a timely period. In years past could order two at a time for a combined lower price, wish I could have done that again. I prefer to use the oem from manufacturer.

  • Aprilaire shopping

    Posted by: Norman R. Mason


    Shopping was easy and delivery prompt so was a good experience.

  • Excellent!

    Posted by: Ronprim


    Very satisfied -- ease of ordering, quality of product, prompt delivery. Consider discounting multiple quantities of same product.

  • Water Panel Evaporator

    Posted by: cbewt


    great company from which to order. received filters sooner than expected. how refreshing to find a company that continues to make parts for outdated products. Job well done!!!!

  • good

    Posted by: Anonymous


    better than other replacements from hardware store that were not OEM. Worth the extra few bucks for a real replacement.

  • back in service

    Posted by: grand rapids, MI


    Customer service was very helpful and calculated the total cost including shipping. Also let me know when to expect the product to be delivered. The humidifier is working fine. Wish I would have found the part earlier to avoid the dry wood floors. Glad to know discontinued whole house humidifier is supported.

  • Well done

    Posted by: Anonymous


    Quick and Accurate

  • #12 Water Panel

    Posted by: John Lee


    Received the water panel in a timely manner; no problem in installing and it works well.

  • easy to do

    Posted by: Lou


    easy to order and good shipment

  • # 12 Water Panel

    Posted by: Anonymous


    The water panel evaporator was slightly larger than the one being replaced. It was a tight fit but works fine.

  • filters

    Posted by: anthony ruggieri


    Good shipping time and great product filters. keep up the good job.

  • Appreciate Supply

    Posted by: Lee


    I am pleased that you continue to stock water panels for my 35 year old humidifier. The process was easy and quick. Keep it up.

  • Part # 12 Water Panel

    Posted by: glee


    I really like the convenience of ordering humidifier parts on line. Shipping is always prompt and I have always been very satisfied with the experience. Free shipping, when available, is another big plus. Keep up the good work!

  • We got what we asked for!

    Posted by: Mike


    Thanks for the great service-easy to order, we got what we ordered in a timely fashion.......how can you beat that??

  • Lou

    Posted by: Anonymous


    Great item works well

  • Orser arrived perfectly

    Posted by: Henry Cohen for Flo Delseni


    Item a bit to large for the plastic case. Had to really force it it. HC

  • Water Panel Evaporator

    Posted by: J White


    Thank you for the prompt delivery. The parts are perfect.