Aprilaire 4793 Maintenance Kit for 550 550A 558

Purchase this handy Aprilaire 4793 maintenance kit and say goodbye to the hassle of keeping track of when to clean or replace the various components in your Aprilaire 550 Humidifier. Simply use this kit to maintain your unit and you can return your Aprilaire 550 back to like-new condition each year! Ensuring healthier cleaner air in your home starts with a quality humidifier you can trust. Everything you need is included in this OEM Aprilaire Humidifier Maintenance Kit Aprilaire part number 4793.

• models 550 550A and 558. This kit contains everything you need to maintain your Aprilaire humidifier.
• Feed Tube Assembly With 4184 Nozzle nozzle snaps into distribution tray
• 27″ Long 4231
• Yellow Orifice comes nested in feed tube 4004