GeneralAire
GeneralAire filters and humidifier parts: GeneralAire / Reservepro 5 and 6 inch furnace filters such as 4541 and 4551, humidifier pads like 990-13, GA19 and GA35, steam cylinders, solenoid valves, humidistats and flow-through humidifiers. Search by the part number on your old filter or pad.
Shop GeneralAire furnace filters and humidifier pads, find steam cylinders and solenoid valves, or see GeneralAire humidifiers and humidifier accessories.
GeneralAire parts guide: furnace filters, pads and steam cylinders ▾
GeneralAire furnace filters by part number
Most GeneralAire / Reservepro media filters here are MERV 11 in 5 or 6 inch depths. Match the part number or size on your current filter.
| Part # | Size | MERV |
|---|---|---|
| 4541, 4366 | 16x25x5 | 11 |
| 4551, 4368 | 20x25x5 | 11 |
| 4556, 4367 | 20x20x5 | 11 |
| GA100A11 | 20x20x5 | 10 |
| 13415, 13156 | 16x25x6 | 11 |
| 12758, 12880 | 20x25x6 | 11 |
| 4521 | 16x25x3 | 8 |
Humidifier pads
Pads are listed by number, such as 990-13, GA10, GA19, GA23, GA35, GA570, GA900, 65-15, 81-15 and 1099-20. The number is usually on the old pad or in the humidifier manual. Many households replace the pad at least once per heating season, or sooner with hard water.
Steam cylinders
Cylinders are listed by model, such as the 15-14, 55 and 35-14 standard cylinder, and the 35-15 low conductivity cylinder. Check your steam humidifier manual for the cylinder it takes, and ask an HVAC technician if you are unsure which type suits your water.
