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Salt-system spas — the year-long fill cycle gives any contamination a full year to cause problems
When alkalinity is too low
where the water that's already moving through your filter passes through the mineral chamber and picks up a low
They can also be used as a super-oxidation (shock) treatment to clear the water of accumulated organic wastes
Unicel 6CH-940 | 45 sq ft Top Load Spa Filter Type_Enhancer Salt-system spas — the year-longThe Unicel 6CH 940 is a top load spa filter cartridge delivering 45 square feet of filtration across 225 pleats of Reemay polyester media, capturing debris down to an average of 20 microns. Built to meet or exceed OEM specifications, it drops straight into a wide range of spa systems. Filtration is the quiet backbone of clean spa water. Every soak leaves behind body oils, lotions, hair, and fine debris, and the cartridge is what removes all of it
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