Aprilaire Humidifier Maintenance Kit 4788 helps ensure your Aprilaire Humidifier 400, 400A and 400M continues to perform at peak efficiency.
The maintenance kit 4788 contents include:
Water Panel 45 (2 pack)
Scale Control Insert 4403
Water Distribution Tray 4407
Float Assembly 4406
Feed Tube and Compression Sleeve 4335
Inline Strainer 4004
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
Maintenance Kit #4788
My maintenance kit came very well packed and very quickly. Everything in the description was included and it was very easy to install the parts. Great service!
Maintenance Kit 4788 for Aprilaire 400
Great tuneup kit. It was a quick response and shipping from the manufacturer. Thank you
I got my order right away, and the price was right. I have no complaints and will come back next year.
Maintenance Kit Purchase
I had no trouble ordering this kit through the website. The box showed up promptly. Thank you.
Why would you pay someone to do this?
Clear instructions, technically simple, essential maintenance for your humidifier that you'd be crazy to pay someone else to do.
4788 Maintenance Kit For Aprilaire Model 400
They are easy to install by yourself to keep the system running without losing efficiency.
Glad to have a source
It is such a pleasure to shop online to get these items. If you can find them instock in a store its a miracle. Even if the store can order them that's a pain in the neck.
4788 Maintenance Kit
no problem. Received all items in a timely manner and had them installed.