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Thread: Replacement Pre-filter and Post-filter for Rainsoft RO UF 50 system

  1. #1
    scott5353 is offline Junior Member
    Join Date
    Oct 2013
    Posts
    1

    Question Replacement Pre-filter and Post-filter for Rainsoft RO UF 50 system

    Does anyone know where to obtain Rainsoft RO replacement pre-filters and post-filters for a Rainsoft UF 50 system?

    The original Rainsoft filters were 18557 pre-filter and 18773 post-filter.

    I would like to find replacement filters online, but Rainsoft only seems to sell them through their distributors at a premium price. I am open to another filter, but cannot find an equivalent filter when I put the Rainsoft numbers in a search on various filter suppliers online.

  2. #2
    Alex is offline Senior Member
    Join Date
    Mar 2009
    Posts
    443

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    The Rainsoft 18557 prefilter are standard 10-Inch carbon filters in a 10-micron. I recommend the Pentek EPM-10 which works well in the UF50 RO system.

    The Rainsoft 18773 post filter is also a 10-Inch filter in a 5-Micron. This is replaced with the Pentek EP-10 filter.

    Also, the 50 gallon per day membrane element is replacement with the M-T1810R50 if needed...

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