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Home > Water Filter Brands > Rainsoft Water Filters > UF-20


Rainsoft UF-20 Reverse Osmosis System Water Filters


Rainsoft UF20 Ultrefiner RO System and Rainsoft UF-20 Reverse Osmosis Water Filters
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 Product Code: UF-20 		 
  • Rainsoft Ultrefiner UF20 Reverse Osmosis System Replacement Water Filters:
  • We distribute compatible water filters for the Rainsoft UF-20 Ultrefiner Reverse Osmosis System.
  • The Rainsoft UF-20 RO System has three separate filtration stages. Some Rainsoft systems have an optional 4th stage inline carbon water filter.
  • Rainsoft UF20 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 6-12 months. Rainsoft Part # 9757, 18557 & 17368 Compatible.

  • Stage 2: The TFC-RS9-22 reverse osmosis membrane is the 2nd stage. The Stage 2 membrane should be changed every 1-3 years. Rainsoft Part # 9568, 21176, 12448, 17374 Compatible.

  • Stage 3: The CBC-10 0.5 Micron Carbon Block water filter is the 3rd stage. The Stage 3 filter should be changed every 6-12 months. Rainsoft Part # 18773 Compatible.

  • Stage 4 (Optional): Some systems have the CL6ROT33-B inline filter as a 4th stage. The Stage 4 inline filter should be changed every 6-12 months. Rainsoft Part # 9798 & 17369 Compatible.

  • Rainsoft UF20 Reverse Osmosis System Parts & Accessories:
  • Order the OR-38 replacement o-rings for the three slim line reverse osmosis housing sumps.
  • Order the SW-1 wrench to use when unscrewing the housings.
  • Rainsoft UF20 Water Filter Change Intervals:
  • The filter change interval will vary due to your water quality and the amount of water used.

We distribute compatible filters for the Rainsoft UF-20 Reverse Osmosis System.

Stage 1: EPM-10
Stage 2: TFC-RS9-22
Stage 3: CBC-10
Stage 4 (Optional): CL6ROT33-B

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

These filters can be purchased below.

 Replacement Filters and Parts
Pentek CBC-10 Cyst Reduction Water Filter Pentek CBC-10 Cyst Reduction Water Filter
Pentek EPM-10 Carbon Block Water Filters Pentek EPM-10 Carbon Block Water Filters
American Plumber, Culligan, Pentek OR-38 O-Ring American Plumber, Culligan, Pentek OR-38 O-Ring
American Plumber, Culligan, Pentek SW-1 Slim Line Housing Wrench American Plumber, Culligan, Pentek SW-1 Slim Line Housing Wrench
Omnipure CL6ROT33-B GAC Inline Water Filter Omnipure CL6ROT33-B GAC Inline Water Filter
Rainsoft TFC-RS9-22 Reverse Osmosis Membrane Rainsoft TFC-RS9-22 Reverse Osmosis Membrane
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