Water Filters for Charity (How do we afford donations on all orders?)
About Us | Videos | My Account | Contact Us | Help?
Water Filters and Home Water Filter Systems Water Filters and Home Water Filter Systems WaterFilters.NET | One of the Inc. Magazine 500 fastest growing companies in America.
Water Filter View Cart 0 item(s) $0.00 Water Filter Checkout

1-888-801-PURE(7873)
M - F 7am - 6pm CST
Water Filter Low Price Guarantee
Water Filtration Search
Water Filter Free Shipping

Home > Water Filter Brands > Rainsoft Water Filters > RAINSOFT-9591


Rainsoft 9591 Reverse Osmosis System Water Filters

Rainsoft 9591 Ultrefiner Reverse Osmosis System Water Filters and Rainsoft Hydrefiner RO Membrane
Water Filters Larger ViewLarger View
Product Code: RAINSOFT-9591
  • Rainsoft 9591 Ultrefiner Reverse Osmosis System Replacement Water Filters:
  • We distribute compatible water filters for the Rainsoft 9591 Ultrefiner Reverse Osmosis System.
  • The Rainsoft 9591 RO System has four separate filtration stages.
We distribute compatible filters for the Rainsoft 9591 Reverse Osmosis System.

Stage 1: P5 - Part # 9747 Compatible
Stage 2: EPM-10 - Part # 9757 Compatible
Stage 3: TFC-RS9-12 - Part # 9565 Compatible
Stage 4: CL6ROT33-B - Part # 9798 Compatible
Note: Please check your water line to make sure your system uses a 1/4" FPT inline filter. If you have a 3/8" FPT inline filter installed, please use the CL6ROT33-C inline filter below.

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 9591
  • Rainsoft 9591 Reverse Osmosis System Stages:
  • Stage 1: The P5 Filter is a 5 Micron Sediment Filter used in the first housing. The Stage 1 filter should be changed every 2-6 months. Rainsoft Part # 9547, 9577, 9591, 9747, 12461, 13110, 17367, 1227867 Compatible.

  • Stage 2: The EPM-10 10 Micron Carbon Block Water Filter is used in the second stage. The Stage 2 filter should be changed every 6-12 months. Rainsoft Part # 9757, 13119, 9531, 18557, 17368, 12464 Compatible.

  • Stage 3: The TFC-RS9-12 RO Membrane is the 3rd stage. The Stage 3 RO membrane should be changed every 1-3 years. Rainsoft Part # 9565, 13016, 9591, 9594, 17375 Compatible.

  • Stage 4: The CL6ROT33-B inline filter is the 4th stage and is 6" x 2". The CL6ROT33-B filter has 1/4" FPT inlet/outlets. (Note: Please check your water line to make sure your system uses a 1/4" FPT inline filter. If you have a 3/8" FPT inline filter installed, please use the CL6ROT33-C inline filter below.) The Stage 4 filter should be changed every 6-12 months. Rainsoft Part # 9798, 13137, 12470, 12471, 17369, 9568, 9798, 9760 Compatible.
  • Rainsoft 9591 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
WaterFilters.NET P5-10-WF Sediment Water Filter WaterFilters.NET P5-10-WF Sediment Water Filter
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-RS9-12 Reverse Osmosis Membrane Rainsoft TFC-RS9-12 Reverse Osmosis Membrane
Omnipure CL6ROT33-B GAC Inline Water Filter Omnipure CL6ROT33-B GAC Inline Water Filter
Omnipure CL6ROT33-C GAC Inline Water Filter Omnipure CL6ROT33-C GAC Inline Water Filter
Add to Cart