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Aprilaire Maintenance Kit 4839

Aprilaire Humidifier Maintenance Kit 4839 includes everything you need to keep your Aprilaire Humidifier 600, 600A and 600M operating like new. Ensure peak performance for your comfort and protection!

The maintenance kit 4839 contents include:
  • Water Panel 35
  • Scale Control Insert 4330
  • Water Distribution Tray 4331
  • Feed Tube and Compression Sleeve 4335
  • Orifice 4231
  • Drain Spud 4223
  • Inline Strainer 4004
  • Owner's Manual
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Total: $

Right Choice

Get it straight from the source!
  • Genuine Aprilaire replacement parts made by Aprilaire in Poynette Wisconsin U.S.A.
  • Made specifically for Aprilaire humidifier for best fit and performance




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Posted By:
  • only filter needed

    Posted by: Bill


    I did not need to order the entire Maintenance Kit, as I only needed to use the new filter. The new filter has made a big difference. Replace yours today. B

  • Aprilaire model 600 kit

    Posted by: LB, Shawnee, Kansas


    It's always a good idea to get the original for the original piece of equipment. Tried other junk and had leaks. Not a problem with this kit.Found out that installer broke a small hose, and I was able to correct it with this kit. GREAT Value.THANKS.

  • answer

    Posted by: eugenehall


    everything was just great, thanks

  • Always a positive Experience

    Posted by: Bob


    This is the second time I have ordered from Aprilaire. The customer service is outstanding. Thanks for a hassle free experience!

  • Good Customer Service

    Posted by: D


    When the Maintenance Kit arrived, the scale control panel in the box was broken. (Better packing probaly could have prevented it.) One phone call to customer service, and a replacement was on the way. No questions asked, and no shipping the broken part back to Aprilaire! The new panel arrived in only two days.

  • Maintenance Kit

    Posted by: M. Gorczynski


    Water started leaking from my Model 600. After some investigation, found out I should have replaced the filter unit some time ago. Decided to buy the maintenance kit as recommended. I received the kit when promised, directions were great, and install of parts took minutes. Unit is back on line and working like new. Went to Aprilaire site specifically to make sure I didn't receive 3rd party parts made in China.

  • comment

    Posted by: ed dougherty


    very satisfied arrived promptly

  • maintenance kit

    Posted by: mjl architect


    order and purchase was good, got the kit quickly upon order. price seemed a bit high. easy to install. overall very satisfied.

  • Installing Maintenance Kit

    Posted by: Dennis Lynch


    Easy to follow instructions made for quick work.

  • Good Product

    Posted by: redmcoupe


    Product shipped very quickly packed well. Was easy to install with straightforward instructions. Great to have OEM product direct form the manufacturer with no concerns if you're getting the right product.

  • Ease of order

    Posted by: Michael


    I purchase the entire kit for future use. I used the replacement section. It works well.

  • Review

    Posted by: Chantelle Bowen


    The site was easy to use and I got my kit earlier than I thought. It was a good experience and I will purchase from this site again.

  • Good OEM Maintenance Kit

    Posted by: Grandpa D


    Easy to order with online help. Installation was made simple with the enclosed instructions. My first time ordering and installing and everything went without a hitch. Humidity has improved greatly since installed. Would recommend Aprilaire humidifier and replacement parts.

  • Would of been five stars

    Posted by: dfunston


    Every thing in this kit is what you need to do maintenance on your duct dehumidifier ans instructions were very clear. I would have put five stars but top panel had its corner damaged in shipment, although didn't seam to make any difference in the way system works.

  • maintenance kit #4839

    Posted by: richo43@sbcglobal.net


    the package was stolen from porch

  • revitalized

    Posted by: DZolner


    the order arrived quickly and with the new parts and included instructions I was able to bring the humidifier back to original condition. With proper operation restored, we now have the humidity we need for a healthy heating season

  • Good all around

    Posted by: James Brouillette


    Easy to roder and install. Definitely helped the humidity go up by replaceing the inner panel.

  • As Easy as It Should Be

    Posted by: FD


    Provided you've got the right model number, ordering online is as easy as it should be. Customer service was great in quickly shipping out a missing piece at no extra cost. Nice work, Aprilaire!

  • Maintenance Kit

    Posted by: Denise


    The humidifer maintenance kit arrived quickly after my order was placed. All needed items were included making the annual maintence of our furnance humidifier an easy task rather than a chore.

  • Good Service Genuine Parts

    Posted by: This Old Boy


    I ordered parts for my Aprilaire humidifier and discovered when I read the instructions for installing the product that the original part put in place by the HVAC company was the wrong part. Thanks for the great instructions included with this maintenance kit. I haven't installed it yet but will in a few days. I look forward to better humidity in home this winter. I always like to get genuine replacement parts for all of my equipment. Thanks for great instructions and great service.

  • maintenance kit

    Posted by: marschallpubd


    was very easy to find the right parts on the web site shipped quickly and installed easily

  • Easy website, easy to use, kit complete, quick ship

    Posted by: Paul L.


    I installed the product. It was very easy. The kit had everything in it to replace tubing and everything. Website was easy to use and purchase was quick. Shipping was quick too. Great job.

  • Customer Service

    Posted by: Anonymous


    Ordering was easy and delivery was prompt.

  • Great service

    Posted by: MJ Schultz


    This is my second time I order parts. They came in 2 days.

  • Overall good

    Posted by: MM


    Water panel looked to be used. otherwise everything was good.

  • So easy!

    Posted by: C. Sexsmith


    It was easy to order, it arrived quickly, and the directions made it super easy to install. Great service!

  • 4839 Maintenance Kit

    Posted by: Steve


    The kit came quickly and would have been easy to install had the initial installation not been botched. After some trial and error, I was able to get everything to work. My only complaint on the kit is that the rubber tube is too stiff. A tube that is a little more flexible would be easier to install.


    Posted by: Anonymous



  • Aprilaire Maint. Kit

    Posted by: I. Doucette


    I am very satisfied with the product and with the mail service. Thank you

  • Water feed tube connection

    Posted by: Jim Brown


    Except for page 13 of the Owners Manual, there is no mention that the end of the water feed tube with the orifice connects to the solenoid valve.

  • maintenance kit

    Posted by: JT


    Easy to install and works just fine.

  • Very EZ all around

    Posted by: Barry


    From ordering on line to quick delivery and EZ to follow directions included with the kit installation was a breeze I will be ordering again !

  • Upgrade kit

    Posted by: Bob


    Everything fit well. Nice improvement.

  • Maintenance Kit

    Posted by: Michael Green


    Ordered one day, arrived next. Easy to replace. Easy to replace everything. Great experience.

  • Maintenance kit

    Posted by: Steve Reed


    Everything arrived well and the kit was a perfect fit. Thanks for the great service! Steve Reed

  • 4839 Maintenance Kit For Aprilaire Model 600

    Posted by: Dave


    Quick. Simple. Complete. All the directions you need to refresh the 600 on the inside. It truly improved the operation of the humidifier.

  • 4839 maintenance kit

    Posted by: Tray Adams


    Perfect service. I will use you again next year.

  • 5 star

    Posted by: javandenbrook@charter.net


    received product order filled OK

  • Very happy

    Posted by: Craig


    Bought a house w/ an aprilaire humdifier. On inspection it looked like it hadn't been serviced in a while and it wasn't working (they had it hooked up wrong). Bought this kit and replaced the main components. Very easy. Took about 10 minutes. System working well now. No longer need separate humidifier in young son's room.

  • Simple Replacement

    Posted by: Larry G


    Only one suggestion. The water tube could be more flexible. Other than that, replacement went well.

  • Great Product

    Posted by: Brian


    Great product, simple instructions, and good price. Made for an easy replacement of humidifier parts and saved me a bunch of money.

  • Received very fast

    Posted by: Anonymous



  • 4839 Maintenance Kit

    Posted by: UEW


    Straight forward and simple installation. Good directions, easy to follow.

  • Aprilaire mainteneance kit

    Posted by: Julie Bezoet de Bie


    Everything went well - thanks. However, we lost the little plastic piece the goes on the end of the new tube. It adjusts the flow of water. Can another one be sent in the mail?

  • Replacement Filter

    Posted by: Rich L


    I looked up what I needed on line, ordered and it came immediately. New filter is in and system is working like a charm.

  • maintenance kit

    Posted by: larry


    good outfit to deal with. 4 stars.

  • Exactly what I needed

    Posted by: Adam


    I had just moved into a new house and this maintenance kit was just what I needed to replace the parts in my humidifier for a long lasting product.

  • Panel installed easily, tubing not

    Posted by: michigan home owner


    I ordered a maintenance kit to replace the water panel that had become moldy. It was easy to install and works fine. The replacement tubing was impossible to put in. I left the old tubing in. Things are working fine, but the uninstallable parts are a waste.

  • Maintenance Kit

    Posted by: duke727@verizon.net


    Very easy to install and use. Ordered online and it was shipped quickly to our home.

  • 4839 maintenance kit

    Posted by: Rocky


    Kit arrived intact and on time. Good job. The only negative I have is that I believe the Aprilaire online parts are way overpriced.

  • Good kit

    Posted by: Michael Halpin


    Delivered timely, with enough directions and pieces to do a good job myself. Very satisfied.

  • rapid response

    Posted by: Anonymous


    Quick shipment and everything in order.

  • Aprilaire Online

    Posted by: Jim U


    I ordered a 4839 Maintenance Kit for my Aprilaire Model 600 humidifier, because I hadn't replaced the filter or even looked at the humidifier in two years. The kit had everything that I needed plus clear instructions to maintain the humidifier. The online purchasing and kit worked great. Fast response. Thanks.

  • perfect match

    Posted by: rc


    the kit had everything I needed and everything in the kit was a perfect match for my system

  • Great Product

    Posted by: Bill


    I found that the instructions were very simple to understand, up and running very quick. Thanks!

  • shopping experiance

    Posted by: Anonymous


    My local service associate recomended i buy these parts on line. The model numbers were provided to me , and i had no issues ordering the correct parts on you web portal by model number. I have not yet installed them, and have no opinion on how they work at this time.

  • Maintenance Kit

    Posted by: John S


    I found your web site easy to use and my order was delivered in less than a week......great service!

  • Great service

    Posted by: J.T.


    I ordered my repair kit for model 600 ,and received it within a matter of days.I also called the Aprilaire help line and they were very helpful and knowledgeable,and friendly.Great site for Aprilaire products.