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💨 Elevate your home's air game with effortless, smart hydration!
The AprilAire 400 Whole-House Humidifier is a high-capacity, automatic evaporative system designed for homes up to 5,000 sq. ft. It features dual sensors for precise humidity control, a 17-gallon daily water capacity with 100% evaporation efficiency, and is engineered to improve indoor air quality by maintaining optimal humidity levels that support respiratory health and protect home interiors. Made in the USA with a 5-year warranty, it offers quiet operation, easy installation, and smart water-saving technology.














| ASIN | B004PDDZRS |
| Best Sellers Rank | #1,707,180 in Home & Kitchen ( See Top 100 in Home & Kitchen ) #1,255 in Humidifiers |
| Brand Name | Aprilaire |
| Capacity | 17 gallons_per_day |
| Color | Gray |
| Control Method | App |
| Customer Reviews | 4.4 4.4 out of 5 stars (316) |
| Filter Type | Wicking Evaporative |
| Floor Area | 4000 square_feet |
| Global Trade Identification Number | 00686720004001, 00686720104008 |
| Included Components | 24VAC Transformer, Humidifier Control, Valves, Installation Instructions |
| Item Dimensions D x W x H | 10.25"D x 15.38"W x 15.75"H |
| Item Shape | Rectangular |
| Item Type Name | Humidifiers Evaporative |
| Item Weight | 8.8 pounds |
| Manufacturer | Research Products Corporation |
| Material | Plastic |
| Model Name | Humidifiers Evaporative |
| Model Number | 400 |
| Operation Mode | Evaporative |
| Other Special Features of the Product | Adjustable Humidity Control, Auto Shut Off, Digital Display, Humidistat, Quiet, Service Filter Indicator |
| Part Number | 400Z |
| Power Source | ac |
| Room Type | Whole-House |
| Runtime | 0 minute |
| UPC | 686720104008 |
| Unit Count | 1 Count |
| Voltage | 24 volts_of_alternating_current |
| Warranty Description | 5 Year Manufacturer |
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