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General Aire 1099-42 Solenoid Valve 24V

SKU#: 109942
List Price: $80.23 Sale Price: $66.86
Product Description

Replacement Solenoid Valve 24V. Includes orifice kit, coil and valve already assembled. Please note that there are 2 different valves made for the model 1099, one is 24 volt and the other is 115 volt. They are simple to tell apart since the 115 volt version has a metal box attached to it which is used to connect the wires from the solenoid valve to the wiring on your furnace. This is typically done with 2 small wire nuts. The 24 volt version does not have a metal box attached to the solenoid valve so the wire nuts used to connect the furnace wires are exposed.


Do not pay attention to the specs printed on the solenoid coil. They will NOT exactly match your existing OLD valve and its not important that they do. Production of this item has changed over the years so it may look slighly different than your old valve. The ONLY important spec is the voltage. This valve is shipped with the 990-37-74 orifice kit already attached to it.

This component is also known as part number: 7052

The manufacturer is sometimes referred to as General Filters, General Air but is correctly spelled General Aire.


Overall Length:
3 1/8 (inches)
6 (oz)
Inlet ID:
1/4 (inch)
Inlet OD:
1/2 (inch)
Outlet ID:
1/4 (inch)
Outlet OD:
1/2 (inch)
Indicated on Product
Orifice Size:
24 VAC
Number of Wires:
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Product Reviews

Add your review of this product Global rating: 4.92 from 25 reviews
Feb 14, 2019
I will order again by William Morris (Imperial MO US)

My system is working correctly again!

Nov 23, 2018
Solenoid 1099-42 by Harris Whitton Hollis,Jr. (Centennial Co US)

Valve replacement worked well. There were no issues with installation. Delivery was faster than expected. I was completely satisfied with courteous customer service. Well done!

Mar 29, 2018
General Aire 1099-42 Solenoid Valve 24V" by Jim Hemphill (Littleton CO US)

The tech support provided by your rep prior to order was truly spectacular. Under his direction, the humidifier performance problem was assessed even to the point of solenoid testing. With quick shipping response, the solenoid arrived in just a few days. I was easily able to install it. Thank you for the excellent service. Please thank Jay for me. Jim Hemphill

Mar 14, 2018
continued excellent service by Gary Busch (Arvada CO US)

When ever I place an order it is simple and I receive it quickly

Mar 8, 2018
General Aire 1099-42 solenoid Valve 24V by Robert C. Lendt (BATH Mi US)

This product was shipped promptly and was very easy to install. The replacement was an exact copy of the existing valve and worked well immediately. They typically last for about 3 years before replacement is needed due to water hardness in our home.

Nov 14, 2017
Solenoid valve, 24V by John Yanushka (Elizabeth Co US)

Solenoid valve is a perfect replacement part. Only had to change the mounting bracket orientation because of the way it was mounted on my furnace. Works great. Suggest directions for mounting be included with each part.

Sep 26, 2016
Solenoid Valve 24V by ( )

Had part I needed at a reasonable price. Shipped promptly.

Mar 28, 2016
General Aire 1099-42 Solenoid Valve 24V by Henry Eng (Englewood Co US)

Delivery was prompt and installation was easy. Fit and form was exactly the same.

Nov 23, 2015
Same as original by Daniel Robinson (Kansas City MO US)

The valve is identical to original and a simple swap. Includes the orifice and some online do not. The only reason I don't give this 5 stars is that it seems to need replacing once a year no matter what I do to maintain it. This one appears to be the same manufacturer and design so I don't expect it will last any longer.

Jan 30, 2015
Works well by Barbara bridges (Shawnee KS US)

We are very happy with this solenoid. Web site easy to find a needed part

Nov 30, 2014
Homeowner by Godon Bowman (9000 N Lilley Rd Mi US)

I ordered a Solenoid valve for my humidifier. It came promptly and was easy to install. It worked right away in conjunction with the Humostat that it was wired to. Pretty straight forward. I'm a dummy when it comes to these things and I impressed myself.

Apr 1, 2014
"General Aire 1099-42 Solenoid Valve 24V by David Dunsmore (Ottawa On CA)

Great product, easy to install and worked perfectly. Thanks

Jan 23, 2014
dave junker by david junker (littleton co US)

great service,solenoid valve was easy to install. problem solved...

Jan 8, 2014
solenoid valve by James Surber (Ames Io US)

The service is great. The valve arrived soon after I had ordered it. Thank you. I subtract one star because these valves will only last two years at the most.

Jan 7, 2014
1099-42 solenoid valve by Kent Taylor (Raytown Mo US)

Your techs that I spoke with were very helpful and informative. Installed the valve and humidifier is working great! It is a pleasure to do business with your company!

Nov 20, 2013
Worked as specified by ( )

Nov 12, 2013
General Aire 1099-42 Solenoid Valve 24V by ( )

I mostly appreciated that you pointed out there are 2 different valves available for this model so I could make sure to order the exact one I needed. I received the part in a very timely manner.

Jan 31, 2013
1099-42 Solenoid valve by Bob Durand (Brighton MI US)

Very happy with ordering process, delivery, and the product.

Dec 7, 2012
works great! by Douglas Kay ( Vi US)

Thank you for stocking exactly the part I needed to fix my humidifier. It was an easy install, and it worked perfectly.

Dec 2, 2012
Fixed the problem by S Leckman (Denver CO US)

Easy to install and fixed the problem I was having with my humidifier. What more could I ask for?

Sep 3, 2012
Sales by Mike (Highlands Ranch Co US)

Easy to install, worked perfectly. Received quickly!

Feb 13, 2012
General Aire 1099-42 Solenoid Valve 24V by (clarkston mi US)

Works great

Oct 20, 2011
Solenoid Valve-24 Volt by Joe Peczkowski (Granger IN US)

Installed and working Beautifully. Thank You.

Jan 2, 2011
General Aire 1099-42 Solenoid Valve 24V by Patrick Jankowski (Parkville Mi US)

General Aire 1099-42 Solenoid Valve 24V arrived when indicated and function as expected, replaced a clogged General Aire 1099-42 Solenoid Valve 24V..

Jan 1, 2011
solenoid valve 24v by dennis ullery (kansas city mi US)

they helped in determining the problem and made a fast ship to help solve the problem. telephone service was excellent.


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