The 9-1421-01 UV Replacement Lamp is for DEL Ozone's UV-C Germicidal UV Unit for residential pools up to 50,000 gallons.

9-1421-01 UV Lamp details:

• Each UV-C Unit requires two 9-1421-01 UV Lamps
• Clean the lamps every 6 months (see manual below on how to clean the lamps)
• Replace the lamps every 18 months
• Occasionally the Quartz Tube breaks during handling.  If you need to replace it, the part number is 9-1416-01

RESOURCE CENTER | Download the following here:
DEL Ozone UV-C Installation and Operations Manual