Caldera 73531 | 75 sq ft Utopia Spa Filter Brand_Quadra-Fire you have the newer version

you have the newer version and need part 73722 instead

and Enhanced Shock is a cornerstone of a simple

High-quality casting

Pro Tip: Think of Ag+ like the long-haul shift of your sanitizer team — it handles the steady

Dishwasher safe or wash in warm soapy water

Caldera 73531 | 75 sq ft Utopia Spa Filter Brand_Quadra-Fire you have the newer versionThe Caldera 73531 filter cartridge is a factory original replacement covering a wide range of Caldera spas. With 75 square feet of filtration across 260 pleats of heavy duty polyester, it delivers more efficient filtration and better water clarity so you spend less time cleaning and more time enjoying your hot tub. Filtration is the quiet backbone of good spa water. Every soak leaves behind body oils, lotions, hair, and fine debris, and the cartridge