RainSoft® Compatible Filters: Ultrarefiner

Choose the RO Membrane that is the same capacity as your current RainSoft® Ultrefiner RO System from the three shown below.

Model 9590
Water Supply Prefilter Membrane Inline Postfilter (optional)
Chlorinated #GD-25-1005 (Must use CTA Membrane) CTA-RS9-10 (Must use Sediment Prefilter) CL6ROT33-B
#OMB934XF(Must use TFC Membrane) TFC Membrane (Must use Carbon Prefilter)
Non-Chlorinated #GD-25-1005 or
#OMB934XF
TFC Membrane CL6ROT33-B
Unknown #OMB934XF or CBCS-975 TFC Membrane CL6ROT33-B


Model 9596
Water Supply Prefilter 1 Prefilter 2 Membrane Inline Postfilter
(optional)
Chlorinated or
Non-Chlorinated
#GD-25-1005 #OMB934XF
or # CBCS-975
TFC Membrane CL6ROT33-B


RainSoft® is the registered trademark of Aquion Partners, L.P. of Elk Grove Village, IL, the manufacturer of RainSoft® brand water treatment equipment. Fresh Water Systems, Inc. is not associated or affiliated with RainSoft® or Aquion Partners, L.P. The replacement water filters and membranes listed above are not manufactured or endorsed by RainSoft®. The manufacturers of these water filters and reverse osmosis membranes are oftentimes Original Equipment Mfg (OEM’s) supplying to customers such as RainSoft® . Although these water filters and reverse osmosis membranes are compatible for use in RainSoft® water treatment equipment, we make no representation as to whether the use of compatible filters and reverse osmosis membranes complies with the warranty associated with RainSoft® equipment.

9-7/8" Sediment Depth Filter - 5 Mic

MFG # 12461, 9547, 9528, 9747, 13110, 17367
FWS # GD-25-1005

$3.05 
20+ for $2.90 ea
40+ for $2.59 ea
120+ for $2.14 ea
Qty:

9-3/4" Coconut Shell Carbon 10mic Block Filter

MFG # 9757, 12464, 13119, 17368, 18557
FWS # OMB934XF

$9.99 
Set of 4 for $9.26 ea
Set of 10 for $8.90 ea
Set of 20 for $7.16 ea
Qty:
$11.99 
5+ for $10.79 ea
10+ for $10.19 ea
20+ for $9.89 ea
40+ for $9.59 ea
Qty:
$14.75 
5+ for $13.28 ea
10+ for $12.54 ea
20+ for $12.24 ea
Qty:

RainSoft® Ultrefiner Compatible Membrane CTA RS9-10 GPD

MFG # 9564, 17376, 21173, UF-10
FWS # CTA-RS9-10

$44.59 
Qty:

RainSoft® Ultrefiner Compatible Membrane TFC -RS9-12 GPD

MFG # 9591, 13016, M-T1810R12, 12447, 9565, 9594, 9772
FWS # TFC-RS9-12

$39.95 
Qty:

RainSoft® Ultrefiner Compatible Membrane TFC-RS9-22 GPD

MFG # 9564, 9568, 9596, 12448, 13018, 17374, 21176, UF20, UF22
FWS # TFC-RS9-22

$44.95 
Qty:

Inline GAC Postfilter - 6 x 2, 1/4 FPT

MFG # 9568, 9798, 12470, 12471, 17369
FWS # K2333-BB

$9.98 
10+ for $7.49 ea
50+ for $6.49 ea
Qty:
$2.99 
5+ for $2.39 ea
10+ for $2.09 ea
20+ for $1.94 ea
Qty:
$1.98 
Qty:
$22.20 
2+ for $21.09 ea
5+ for $19.98 ea
Set of 10 for $18.87 ea
20+ Call
Qty:
$34.40 
2+ for $32.68 ea
5+ for $30.96 ea
Set of 10 for $29.24 ea
20+ Call
Qty:
$34.40 
2+ for $32.68 ea
5+ for $30.96 ea
Set of 10 for $29.24 ea
20+ Call
Qty:

Tank Pressure Gauge

FWS # 54846

$8.79 
Qty:

Sani System - 0.5oz Packet

FWS # SANISYSTEM

$2.75 
Qty:

Sani System - Box of 24

FWS # SANISYSTEM-24PK

$42.88 
Qty: