4040 Humidifier Water Solenoid Valve 24 Volt Fit For Aprilaire 240 400 500 600 700 Series Replaces B2015-S85 B2017-S85 Seven Sixteenth Inch UNS Thread Easy Install Durable Replacement For Home Humidifiers

Single 24V Humidifier Solenoid Valve, 4040
✔️ 7/16-24 UNS thread, brass body, stainless seat, 2.3W, 60Hz

This is a replacement solenoid valve for humidifiers, designed to regulate water flow into the unit and help maintain stable indoor humidity. It’s commonly used in residential humidifiers with standard compression fittings and 7/16-24 UNS connections, and it can replace older B2015-S85 or B2017-S85 valves.

✅ Voltage and power: 24 V AC, 2.3 W at 60 Hz
✅ Thread and fittings: 7/16-24 UNS with 1/4 in compression fittings
✅ Construction: solid brass body with stainless steel valve seat
✅ Compatibility: fits common residential humidifiers (models in 240-768 range; not 330, 445, 110, 112, 350, 360)
✅ Includes: compression nut, washer, inline strainer; dimensions 2.95 in L x 2.2 in W (75 mm x 56 mm)

💡 What is a 24V humidifier solenoid valve used for in a home system and when should I replace it? This handy device precisely meters water to maintain humidity levels. - It opens/closes water flow based on control signals in the humidifier water path - Leaks, sticking, or slow actuation indicate it’s time for replacement - Replacing restores accurate humidity control and energy efficiency