



Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The Aprilaire 400 is a whole-house humidifier designed to maintain consistent humidity levels in homes. This model features an automatic duct-mount bypass system that uses minimal water while delivering up to seventeen gallons per day, making it an efficient choice for home installation.
This humidifier includes a digital control system for precise humidity management. It operates without a drain, helping conserve water and avoid standing water issues.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!

