Humidifier Pad: 10 in x 1 3/4 in 1 3/4 in
Item: 31TP34, MFR: 10, Brand: APRILAIRE
| Compatible Manufacturer Model Number | 550A, 550, 220, 110, 500, 558, 500A, 500M |
| Compatible Grainger Part Number | 31TP27, 31TP26 |
| Overall Height | 10 in |
| Overall Width | 1-3/4 in |
| Overall Depth | 1-3/4 in |