Unicel 8000 Series 100 sq. ft. Replacement Filter Cartridge for Caldera Spas | C-8399 VLLS103S 8005B Skimmer

8005B Skimmer

Measures 1-1/2-inch MIP

total alkalinity and cyanuric acid

after four months old it should be tested against a standard periodically)

Once pool is full and operational

Unicel 8000 Series 100 sq. ft. Replacement Filter Cartridge for Caldera Spas | C-8399 VLLS103S 8005B SkimmerThe Unicel C 8399 is an 8000 Series 100 sq. ft. replacement filter cartridge engineered for Caldera Spas systems. With 259 precision formed pleats of 3 oz. Reemay 2033 polyester media, this cartridge delivers the filtration surface area needed to maintain crisp, clear spa water meeting OEM specifications without compromise. Specifications Filter Area 100 sq. ft. Length 16 1 2" Outer Diameter 8" Top Inner Diameter N A Bottom Inner Diameter 3 5 8"