Unicel 7000 Series 75 sq. ft. Replacement Filter Cartridge for Caldera Spas | C-7375 C8425 Service professionals keep the 461100

Service professionals keep the 461100 kit stocked for MasterTemp and Max-E-Therm call-outs precisely because heater fault codes rarely point to a single failed component — a failed thermistor often accompanies a degraded pressure switch

Brand Equipment Line Model / Part Number Hayward SwimClear Single Element Cartridge Filter C100S Compatibility is based on Hayward parts documentation and available OEM records

The Unicel C-5397 is a 5000 Series 80 sq

finished in almond

The air relief assembly vents trapped air from the filter tank

Unicel 7000 Series 75 sq. ft. Replacement Filter Cartridge for Caldera Spas | C-7375 C8425 Service professionals keep the 461100The Unicel C 7375 is a 7000 Series 75 sq. ft. replacement filter cartridge engineered specifically for Caldera Spas. Built with 216 pleats of 3 oz. Reemay 2033 polyester media and a precision formed 7" outer diameter, it delivers the filtration area and dimensional accuracy that Caldera filter housings require. The semi circular handle top and open bottom with 2 11 16" inner diameter match the OEM geometry exactly so it drops in cleanly and seals