Nature2 Fusion/DuoClear 25K Replacement Cartridge - 4 Pack valve-type_Gate It does include the regulation

It does include the regulation rim

It is used for testing chlorine bleach solutions - chlorine neutralizer

provides a wire 2 lead 24 Volt low voltage cable to be wired into the NO and COM Terminals of the Auxiliary Relays

5 inch anti-vortex plate prevents the formation of a vortex and subsequently air entrapment into the pump by forcing any emerging vortex to go around a plate and then into the suction pipe

The case on the 75-person kit is metal

Nature2 Fusion/DuoClear 25K Replacement Cartridge - 4 Pack valve-type_Gate It does include the regulationThis Nature2 25K replacement filter cartridge, in a package of 4 cartridges, is used on the Fusion Duoclear filters. The Nature2 Fusion Duoclear cartridge (4 pack) can be used on either the Duoclear or Fusion filters for pools up to 25,000 gallons. Nature2's patented technology uses minerals to kill bacteria and control algae for up to six months. Nature2 mineral cartridges are environmentally friendly and produce sparkling clean pool water that is