Unicel 7000 Series 75 sq. ft. Replacement Filter Cartridge for Caldera Spas | C-7375 C8425 this cartridge maximizes surface area

this cartridge maximizes surface area for thorough debris capture while the antimicrobial treatment inhibits bacteria

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

The Hayward Barb Hose Connector (SPX1091Z2PAK2) is the OEM replacement barb hose fitting for Hayward ProSeries sand filters

Clean all debris off of pool cover before removing

salt water

Unicel 7000 Series 75 sq. ft. Replacement Filter Cartridge for Caldera Spas | C-7375 C8425 this cartridge maximizes surface areaThe 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