The Aprilaire 600M bypass humidifier can humidify a tightly-constructed home of up to 4,000 square feet.

Add the 4839 Annual Maintenance Kit to your order! This convenient kit gives you all the parts you need to maintain your Aprilaire 600M humidifier each year and keep it running in like-new factory condition.

The Aprilaire 600M is recognized as the best manual bypass humidifier on the market, and features an updated manual humidity control and a conveniently labeled bypass damper for winter and summer settings. It also includes a 5 year manufacturer's warranty.

Overview	Seasonal Maintenance	Water Panel Replacement

If you have any questions regarding this product please feel free to email support@DiscountFurnaceFilter.com or call 1-888-623-4678 and one of our knowledgeable Customer Experience Representatives will be happy to help.