Astral Pool Sand Filter Union Nut (00545-0302) valvekits and this Darlly cartridge is

and this Darlly cartridge is designed for compatible applications referencing FC-1256

and PSD125-2000 references

and this GLI Pool version is designed for Hurricane and Monsoon reel applications using the 99-55-4395018 reference

Panel mount circuit breaker rated at 10A for 115V applications

This slip style version is designed for systems that require that connection method

Astral Pool Sand Filter Union Nut (00545-0302) valvekits and this Darlly cartridge isThe Astral Pool sand filter union nut is designed for compatible plumbing connections where a serviceable filter union needs secure fastening. A union nut is useful because it helps clamp the removable union assembly together, supporting dependable retention while still allowing the connection to be opened later for service. This replacement is especially useful when the original nut is cracked, stripped, cross threaded, or missing. Using the proper