If you have a DEL AOP 50 (previously named DEL Ozone Solar Eclipse), the Ozone Gas Line Assembly inside should be replaced annually.
To consolidate part numbers, DEL offers the one-size-fits-all for this Ozone Gas Line Assembly option, the 9-1352-01, which is the longer version. This will fit BOTH units.
9-1352-01 Ozone Gas Line Assembly includes:
REPLACE SOLAR ECLIPSE OZONE GAS LINE ASSEMBLY ANNUALLY TO AVOID PREMATURE FAILURE TO YOUR SOLAR ECLIPSE. EASY AND AFFORDABLE PREVENTION!