Swimables R0357800 Filter Tank Oring for Jandy DEV, DEL, CV and CL Filter | O-524 . Compatibility: This tank oring is compatible with most Jandy filter: CL460, CL580, DEV48, DEL48, DEV60, DEL60, CV340, CV460, CV580, CL340, CL460, CL580. Also Compatible With: This tank o-ring is also compatible with the Jandy DEV 60 Filter, Jandy CL580 Cartridge Filter, Jandy CV340 Filter and CL580 parts. Installation Instructions: Relief the air inside the filter and disassemble the clamp to remove the lid off of the filter. Remove the old tank oring and throw it away. Installation Instructions 2: Apply a generous amount of PTFE (Teflon) based lubrication to the tank oring and install onto filter housing. Close the filter and run the pump to inspect possible leaks. Note: It is always recommended to clean the filter once opening it to change out the tank oring in order to reduce any excess pressure that may have been built up due to debris. Compatibility: This tank oring is compatible with most Jandy filter: CL460, CL580, DEV48, DEL48, DEV60, DEL60, CV340, CV460, CV580, CL340, CL460, CL580 Also Compatible With: This tank o-ring is also compatible with the Jandy DEV 60 Filter, Jandy CL580 Cartridge Filter, Jandy CV340 Filter and CL580 parts Installation Instructions: Relief the air inside the filter and disassemble the clamp to remove the lid off of the filter. Remove the old tank oring and throw it away. Installation Instructions 2: Apply a generous amount of PTFE (Teflon) based lubrication to the tank oring and install onto filter housing. Close the filter and run the pump to inspect possible leaks. Note: It is always recommended to clean the filter once opening it to change out the tank oring in order to reduce any excess pressure that may have been built up due to debris.