Photo 1 of Tier1 - 20 in. x 7 in. - Pool and Spa Filter Cartridge (4-Pack) for Pentair Clean and Clear Plus

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Photo 1 of Tier1 - 20 in. x 7 in. - Pool and Spa Filter Cartridge (4-Pack) for Pentair Clean and Clear Plus Photo 2 of Tier1 - 20 in. x 7 in. - Pool and Spa Filter Cartridge (4-Pack) for Pentair Clean and Clear Plus