Nature2 Fusion/DuoClear 25K Replacement Cartridge - 4 Pack valve-type_Gate 5 inch anti-vortex plate prevents

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

It is used for testing chlorine bleach solutions - chlorine neutralizer

040 mil Styrene Plastic and is designed to inform beachgoers that the waterfront is closed

It has a Piggyback Mechanical Float for switch/operation type

Nature2 Fusion/DuoClear 25K Replacement Cartridge - 4 Pack valve-type_Gate 5 inch anti-vortex plate preventsThis 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