Alpine Spas / Sunrans CD 20 Skim Filter Replacement Cartridge. Has a closed flat top and the bottom has a coarse thread spigot. CD20.

Suits these Alpine Spas models: Alaska, Alberta, Arctic, Aspen, Barbados, Belmont, Calgary, Colorado, Cub, Duo, Edmonton, Frontier, Fuji, Glacier, Kingston, Malibu, Montreal, Nepal, Nevada, Nordic, Nova, Oasis, Oregon, Ottawa, PureSpas Fiesta 4, PureSpas Grand 6, PureSpas Lux 3, PureSpas Revive 5, PureSpas Splash 6, Tibet, Toronto, Utah, Yukon

Also replaces Canadian Spas 20, Fox Ultimate CD20

Filter dimensions:

• Height: 265mm 
• Width: 125mm
• Hole Size: 54mm

Alpine Spas Filter, Spas Direct Filter, Escape Spas Filter, Sun Spa Filter.