Caldera 76136 | 65 sq ft Vacanza Spa Filter

The Caldera 76136 filter cartridge is a factory-original replacement for Caldera Vacanza® Series spas. With 65 square feet of filtration across 234 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 is what removes all of it before it clouds the water, feeds bacteria, or coats your plumbing. When a filter is worn or clogged, the effects spread everywhere: dull water, higher chemical use, softer jets, and a pump and heater straining against restricted flow.

This is a wide-format cartridge — short and broad at 8-1/2 inches across and about 10-5/8 inches tall — sized for the larger Vacanza models that seat five to seven people. That extra diameter is what lets it pack 65 square feet of filtering surface into a compact height. Caldera specifies a heavy-duty polyester media built to outlast cheaper alternatives, and like all Caldera filters it's made in the USA.