What filter/pad fits a Generalaire York s1-hu18mp humidifier?
The Generalaire York s1-hu18mp humidifier uses the GA900 replacement furnace/whole-house water panel.
Key takeaways
- Replacement part number: GA900 (Generalaire).
- This is a furnace/whole-house water panel, not a portable-unit wick.
- Replace once per humidifying season, or sooner if it's visibly scaled or discolored.
- A cheaper aftermarket filter can fit the same slot - check reviews for real-world fit before buying.
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Also known as
The GA900 replaces (and is cross-referenced under) these part numbers: HEP-GA19, 7919, GA-19, S1-HUPAD18.
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Frequently asked
What filter/pad fits a Generalaire York s1-hu18mp humidifier?
The Generalaire York s1-hu18mp uses the GA900 (Generalaire GA900 Evaporator Pad), a furnace/whole-house water panel.
Is the GA900 a wick or a furnace pad?
The GA900 is a furnace/whole-house humidifier water panel, not a portable-unit wick.
How often should I replace the GA900?
We don't have a manufacturer-listed replacement interval for the GA900 - a common default is once per humidifying season, or sooner if it's visibly scaled or discolored.
Should I buy the OEM filter or an aftermarket one?
The genuine Generalaire GA900 is the safe, exact-fit choice. A cheaper aftermarket wick or pad can fit the same slot too - check reviews for real-world fit and how well it wicks water before buying, since humidifier filters aren't independently certified the way NSF-listed water filters are.