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Bottom: 1-1/2" SAE Thread
It dissolves quickly and evenly
Choose the Coast Spas Chlorine Starter Kit for reliable performance and superior water quality
cost-saving package
spa pillow foam core
Unicel C-4305 Hot Tub Filter Cartridge filter clean Bottom: 1-1/2" SAE ThreadThe Unicel C 4305 has been used in a variety of hot tub models and brands over the years, including select Cal Spas and the 1994 Suntub by Sundance Spas. As filter dimensions can vary between spa models, its always best to confirm this cartridge matches the size of your existing filter to ensure proper fit and performance. Specifications: Part Number: C 4305 Diameter: 4 15 16" Length: 14 7 8" Top: 2 1 8" Open Bottom: 2 1 8" Open Media Area: 50 sq. ft.
