Balboa Clim8Zone 2" Low Amp Check Valve (73003) vacuumrelease and this Darlly cartridge is

and this Darlly cartridge is designed for compatible applications referencing FC-3082

Filter cartridges are useful because they help maintain water clarity while supporting the overall performance of the filtration and circulation system

That can make the final result feel cleaner

Replacement is often necessary when the original hose becomes cracked

Identified as conversion kit number 1

Balboa Clim8Zone 2" Low Amp Check Valve (73003) vacuumrelease and this Darlly cartridge isThe Balboa Clim8Zone check valve is designed for compatible plumbing applications where dependable one way flow control is needed. A check valve is useful because it helps prevent backflow, supporting cleaner system operation and more stable water movement through the connected line. This replacement is especially useful when the original valve is sticking, leaking, damaged, or no longer preventing reverse flow correctly. Matching the correct 2 inch