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Home > Water Filter Brands > Rainsoft Water Filters > RAINSOFT-9598


Rainsoft 9598 Reverse Osmosis System Water Filters


Rainsoft 9598 Ultrafiner RO System and Rainsoft 9598 Reverse Osmosis Water Filters
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Product Code: RAINSOFT-9598
  • Rainsoft 9598 Ultrefiner Reverse Osmosis System Replacement Water Filters:
  • We distribute compatible water filters for the Rainsoft 9598 Ultrefiner Reverse Osmosis System.
  • The Rainsoft 9598 RO System has three separate filtration stages.
We distribute compatible filters for the Rainsoft 9598 Reverse Osmosis System.

Stage 1: EPM-10
Stage 2: TFC-RS9-50
Stage 3: EP-10

See the Replacements tab above for more information on each stage and the compatible filters for each stage.

These filters can be purchased below.
  • Manufacturer: Rainsoft 9598
  • Rainsoft 9598 Reverse Osmosis System Stages:
  • Stage 1: The EPM-10 10 Micron Carbon Block Water Filter is used in the first housing. The Stage 1 filter should be changed every 6 months. Rainsoft Part # 12464 Compatible.

  • Stage 2: The TFC-RS9-50 reverse osmosis membrane is the 2nd stage. The Stage 2 membrane should be changed every 1-3 years. Rainsoft Part # 18571, 12447, 18644, 17370, 21179 Compatible.

  • Stage 3: The EP-10 5 Micron Carbon Block water filter is the 3rd stage. The Stage 3 filter should be changed every 6-12 months. Rainsoft Part # 18773 Compatible.
  • Rainsoft 21173 Reverse Osmosis System Parts & Accessories:
  • Order the OR-38 replacement o-rings for the three slim line reverse osmosis housing sumps.
  • Rainsoft 21173 Water Filter Change Intervals:
  • The filter change interval will vary due to your water quality and the amount of water used.

We are not authorized to sell the genuine Rainsoft filters, but we sell compatible Rainsoft filters. Note that you can only use genuine Rainsoft filters in your system in order to maintain the original manufacturer's warranty.

Replacement Filters and Parts or Alternative System for the Above Unavailable Product
Pentek EPM-10 Carbon Block Water Filters (9-3/4 Pentek EPM-10 Carbon Block Water Filters (9-3/4" x 2-7/8")
Rainsoft TFC-RS9-50 Reverse Osmosis Membrane Rainsoft TFC-RS9-50 Reverse Osmosis Membrane
WaterFilters.NET EP5-10-WF Carbon Block Water Filter WaterFilters.NET EP5-10-WF Carbon Block Water Filter
American Plumber, Culligan, Pentek OR-38 O-Ring (3.5 American Plumber, Culligan, Pentek OR-38 O-Ring (3.5" Diameter)
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