Intex 6 x 29001E B00PUZW3N2 PureSpa Type S1 Easy Set Pool Cartridges (12 Filters) | 2, 1 Pack, Blue

For maximum efficiency, clean cartridges each week and replace once a month or sooner

It is made with easy-to-clean, heavy duty Dacron paper, for the ultimate filtration

Works with all Intex PureSpa models including 28403E, 28407E, 28443E, 28453E, 28421E, 28423E, 28413E, and 28453E

Genuine Intex type S1 filter cartridge – twelve pack The S1 cartridge filter is sure to keep your purespatm jet massage water clean and fresh

Each filter Measures 3in x 4 1/4 in