PolyGroup Summer Waves I Type Filter Cartridge - 2 Pack
Brand: PolyGroup
This 3.11 in x 3.54 in Filter Cartridge (Type I) features ultra fine heavy-duty paper with more pleats for better filtration.

Patented built-in chlorinator to suspend chlorine tablets in the middle to maximize chlorine effectiveness.

Replace filter cartridge every 2 weeks.
Fits the following filter canisters: SFX-330 and RX-330
This 3.11 in x 3.54 in Filter Cartridge (Type I) features ultra fine heavy-duty paper with more pleats for better filtration.
Features a built-in chlorinator to suspend chlorine tablets in the middle to maximize chlorine effectiveness.
Replace filter cartridge every 2 weeks.
Comes in a pack of 2 (Type I) cartridges.