R0990900 DEL Ozone Module Kit for AOP 25 and 40 comes with:

• Modern Ozone Module 9-1565-01
• AOP 25 utilizes ONE R0990900 Kit
• AOP 40 utilizes TWO R0990900 Kits
• Replacement Air Filter 9-0858-01
• Instruction Sheet 

To keep your AOP 25 Full Flow maintained, we also recommend these replacement parts by DEL Ozone: 

• R0990800 UV Lamp for AOP 25
• R0991600 Quartz Tube for AOP 25 and 40
• R0991000 Ozone Tubing Kit for AOP 25 and 40 

These Ozone Modules do NOT work in the Side-Stream version of the AOP 25 (AOP S).