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Thread: nautilus o-ring round or square?

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    nautilus o-ring round or square?

    I'm replacing my 18" oring on my stainless steel (old)Pac fab DE filter. I took it apart and the oring is square but at the pool shop the new one is round. Does it make a difference or is this OK? Thanks for any info.

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    In the Industry

    Join Date
    Dec 2011
    Orlando, Fl

    Re: nautilus o-ring round or square?

    To my knowledge, the Nautilus SS orings are round originally,
    and they will take on the shape of their location..

    If the overall diameter and thickness are close, you may as well lube it up and give it a try!

    18,000 gallon in ground, plaster
    340 sq ft cartridge filter
    Jandy variable-speed 2 HP pump
    completed 6/29/12

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