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Our Caldera 75 sq. ft. filter is used with Caldera Paradise hot tub models, PN#4556.
6 in stock
Our Caldera 50 sq. ft. filter is for use with Caldera Paradise hot tub models...
Aquaterra Spas (Costco), Fantasy Spas, Freeflow Spas
Replacement filter cartridge for Hot Spring Spas.