Aprilaire - The Aprilaire 4040 24V solenoid valve allows water to come into your humidifier. This valve can be used on all Aprilaire humidifiers except for commercial units and residential models 800, 330, 445, 110, 112, 350 and 360. Other parts that may be needed with this part are the 4004 and the orifice (part number 4231, 4232, 4007 or 4021 depending on which model humidifier you have). We recommend that any wiring on your humidifier be completed by a professional contractor.
0.35 Pounds (lbs)
1.625 Inches (In)
1.875 Inches (In)
Country of Origin
2.625 Inches (In)
Equipment Part List
*Offer valid March 1, 2019 - April 30, 2019. Excludes special pricing. Offer cannot be combined with other offers or programs. While supplies last. No rainchecks allowed. Not valid on previous purchases. Management reserves the right to modify or end this promotion at anytime. All products not available in all areas. Account must be active and in good standing with CE, as determined by CE’s credit department prior to and during the promotion period. Giftcertificates.com voucher will be distributed within 60 days of the conclusion of the promotional term. Returns of eligible merchandise will be subject to deduction of valuation of voucher. Eligible accounts will be notified by telephone or email.
‡Ductless Stock Up and Save offer valid thru May 31, 2019 at participating CE locations. Account must be active and in good standing condition to qualify for terms. Excludes special pricing and all accessories. Special quotes, OEM parts & job pricing excluded. Not valid on previous purchases. Offer cannot be combined with other offers or programs. Management reserves the right to modify or end this promotion at any time without notice. Orders must be placed and taken delivery by May 31, 2019.