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Aprilaire Maintenance Kit 4793

Aprilaire Humidifier Maintenance Kit 4793 includes everything required for your Aprilaire Humidifier 550, 550A and 558 to continue operating at its peak efficiency.

The maintenance kit 4793 contents include:
  • Water Panel 10
  • Scale Control Insert 4217
  • Water Distribution Tray 4218
  • Feed Tube and Compression Sleeve 4226
  • Orifice 4231
  • Drain Spud 4223
  • Nozzle 4184
  • Inline Strainer 4004
  • Owner's Manual
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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

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  • Replacement Kit

    Posted by: Sarah

    02/12/2013

    The kit was on my door step very quickly, and was even easy enough to replace that I was able to do it on my own!

  • Maintenance Kit #4793 for Aprilaire Model 550

    Posted by: Harry Franklin

    01/07/2013

    Like the new setup....Lot easier than before! Thanks.

  • GREAT SERVICE AND FAST DELIVERY

    Posted by: POPPO124

    01/02/2013

    WEB SITE WAS GREAT AND EASY TO USE DELIVERY WAS VERY QUICK GRET JOB KEEP UP THE GOOD RECOMMEND YOU HIGHLY

  • Great tservice--quick delivery

    Posted by: Andy

    12/05/2012

    Box the unit was shipped in was a bit too large--too bad youbcant streamline packaging to reduce wasted s&h. Otherwise, very great service!

  • Everything I Needed

    Posted by: Kingsbury

    12/04/2012

    Found my humidifier all lime up and found this kit to contain all the parts I needed. The hardest part was getting to some of the connection in around the furnace. Shipment was quick and on time.

  • Maintenance Kit # 4793 for Aprilaire Model 550

    Posted by: Anonymous

    11/04/2012

    Complete package. Fairly easy to use.

  • Great service

    Posted by: Jim Maack

    11/04/2012

    Great response, fast and accurate. Thank you

  • kit 4793

    Posted by: nick

    11/01/2012

    fast delivery,excellent. i have had no previous experience with systes of this nature but i was able to replace all parts in 10 mins. very simple and easy to maintain and works great. thanks for a great product.

  • service

    Posted by: dvtrumbull

    09/13/2012

    fast shipping and right part

  • Use it for all its worth

    Posted by: Me

    03/07/2012

    Fast, easy ordering for parts I need...thanks!

  • 4793 Maintenance Kit for Aprilaire Model

    Posted by: jk green

    02/02/2012

    thank you fast delivery will ordering all my need for this from you

  • Met my expectations.

    Posted by: Todd Proffitt

    02/02/2012

    I recently bought a house with an Aprilaire system in the home. When winter came I discovered i needed to replace the filter and found the maintenance kit to be reasonably priced. I came quick and ready to install. The only downside was the instructions were a bit confusing because i was not familiar with the system. Other than that great product.

  • Just what was needed

    Posted by: Jet1959

    02/01/2012

    Had a family member come over (which is HVAC Certified) and check my furnace. He took apart my Aprilaire humidifier and didn't put it back together resulting in loosing most of the parts. I purchased this and everything I needed was there. Easy to read instructions but need better detailed pictures for each step. I'm glad I could still get the parts. Thanks Aprilaire!

  • Replacement Humidifier Kit

    Posted by: Mike Cummings

    01/15/2012

    Everything thing you need to get your humidifier back to new condition. Delivery was very quick. Very Satisfied.

  • refresh done right

    Posted by: Speedi

    01/08/2012

    I've had this unit in my house for over 13 years and its getting a little aged. This kit addresses any parts that wear and completely refreshed by unit to new. Thanks for offering this kit and not making me pick a bunch of pieces out of the parts list.

  • Maintenance kit for Model 550

    Posted by: Bill in North Dakota

    01/06/2012

    The kit I received from you for my Aprilaire Model 550 was complete and easy to install. It took maybe a half hour at the most from start to finish. Thank you for the quick shipment.

  • Model 550 replacement kiy

    Posted by: BK

    01/06/2012

    Delivery was fast. Install was easy. Ordering was easy. Will use again in the future.

  • Maintenance Kit

    Posted by: Ken

    01/05/2012

    Delivered on schedule, good communication, good product. Installed in just a few minutes and works great! Thanks.

  • maintance kit for aprilaire 550

    Posted by: charles phipps

    12/14/2011

    Kit was easy to install, and works great. thanks again AAAAA

  • Maintenance kit 4793

    Posted by: Betty Smith

    12/13/2011

    My husband replaced it and had no trouble. Our Aprilaire works very well. So easy to use and will order from you again when we need to. Thanks, Betty

  • 4793 maintenance kit for aprilaire 550

    Posted by: Anonymous

    12/12/2011

    All product received as promissed and worked great.

  • excellent service and delivery

    Posted by: R Willis

    12/12/2011

    They were excellent providing replacement of delivered items that I mistakenly ordered. They provided good advice and reacted quickly.

  • Thank you

    Posted by: Mike Bevis

    12/12/2011

    Great service level and follow up. I appreciate the excellent service.

  • Simple, Easy, Awesome

    Posted by: Thankful Homeowner

    11/07/2011

    The product was exactly what I needed. The job was easy, the kit completely met my needs, and I was finished in less than 30 minutes.

  • Got here fast

    Posted by: Chris

    10/07/2011

    Ordering was easy, package arrived fast. Had to cut a piece off of the old unit to get it on the new unit. Wish it would have came with it, but I made do.

  • Aprilaire Maintainance Kit for 550

    Posted by: medicmom05

    10/05/2011

    Easy to order online, shipping w/Fedex was free. Received order quickly, instructions were a little hard to follow, but just replace new items in the order you took the old items off & you'll do fine. Although the #10 Water panel was too long for my 550 unit, (in fact the package didn't even list it being for a 550) it was an easy fix to cut to correct length w/a fine tooth hack saw. Would order from Aprilaire again.

  • Aprilaire Maintenance Kit

    Posted by: Shelley

    08/21/2011

    We bought this kit to use in the Aprilaire Humidifier on my furnace but we won't actually be turning it on until the heat is back on in winter. All the parts were there, the service was fast and it was easy to install. I've never used this humidifier so I'll find out in a few months what I think from there.

  • Aprilaire Maintence Kit

    Posted by: TM

    03/14/2011

    Great kit with everything that was needed to do it yourself. Instructions were a little tough to follow that's why only 4 stars but for everything else it was simple and easy.

  • Parts of our Humidifier

    Posted by: TenSAce2504@aol.com

    02/09/2011

    Although quite late I would like to make this comment. The replacemnt parts were installed by myself. Very easy to install for "do it yourself" like me and we are very satisfied, works well and get our humifidifier going for this winter and next. Thanks.

  • 4793 maintenance ket.

    Posted by: sam williams

    02/03/2011

    kit worked great, thanks sam

  • Feedback request response

    Posted by: AL

    02/01/2011

    accurate description details. Item arrived in good condition. Shipping was fine (I am on the west coast). Ordering process was user-friendly.

  • Maintenance Kit

    Posted by: Jason

    02/01/2011

    Greatly improved performance, kit was complete, instructions mostly clear, shipped promptly.

  • 4793 maintenance kit

    Posted by: ftavano

    02/01/2011

    Nice kit, everything fit perfectly, easy installation. Fast service from company with regard to shipping.

  • 4793 Maintenance Kit

    Posted by: Bob

    02/01/2011

    Everything needed to keep your humidifier in great working condition.

  • 4973 Maintenance Kit

    Posted by: Phil Brown

    02/01/2011

    Everything replaced easily. Humidifier now working well.

  • 550

    Posted by: gsier@verizon.net

    02/01/2011

    your service was very good, i replaced with new parts & can only get270/0 just what will a 550 cover ( sq. feet ) for home thanks for your help

  • Good product

    Posted by: Don

    07/30/2010

    Purchasing the items I need on-line was easy and everything I ordered was shipped in a few days. Very easy.