This is a Lennox Healthy Climate standard replacement lamp for the UV-500 / UV-523 . For best results, you should change the bulb yearly.
Bulb length - 16".
Product Name: DF H/C 210907-00 0500 LAMP, 64X3601
Part Numbers: 64X36, DF H/C 210907-00 0500 LAMP, 210907-00, or 64X3601
Replacement for:
- Lennox Healthy Climate UV-500 Germicide Lamp Systems
- Lennox Healthy Climate UV-523 Germicide Lamp Systems