Unicel C-4301 Replacement Filter Cartridge | 27.5 sq. ft. | Martec / Sonfarrel / Nordic Enzymes This is the thinner step

This is the thinner step model of the 200200 Easy Incline Deck Ladder

Remove and store cover

Leaves and debris are collected in mesh bag that attaches to the top

Reduces unpleasant odors

Unicel C-4301 Replacement Filter Cartridge | 27.5 sq. ft. | Martec / Sonfarrel / Nordic Enzymes This is the thinner stepThe Unicel C 4301 is a 4000 Series 27. 5 sq. ft. replacement filter cartridge engineered for compact spa and pool filtration systems. With 106 precision set pleats of 3 oz. Reemay 2033 polyester media, this cartridge delivers reliable water clarity and extended service life in a tight 14 7 8" profile purpose built for the spa systems it was designed to replace. Specifications Filter Area 27. 5 sq. ft. Length 14 7 8" Outer Diameter 4 15 16" Top Inner