Hot Spring C50 Filter Cartridge fits the following Hot Spring Spas.
Accent
Accolade
Aptos
Azure
Calistoga
Cascina
Cyclone
Emerald
Excursion
Kapiti
Matakana
Monterey
Rangitoto
Solstice
Tiritiri
Tristar
Tropic
Typhoon (2016-18)
Whirlwind (2016-18)