Photo 1 of Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring

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Photo 1 of Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-RingPhoto 2 of Yueidung 2420MAR2 Manual Air Relief Assembly, for Hayward DE and Cartridge Pool Filte, Compatible with Pro Grid De Swimclear and Swim Clear Cartridge Filters with Teflon Tape and O-Ring