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Keystone

Keystone® is the registered trademark of Met-Pro Corporation's Keystone Filter Division of Hatfield, PA the manufacturer of Keystone® brand water treatment equipment. Fresh Water Systems, Inc. is not associated or affiliated with Keystone® or Met-Pro Corporation. The replacement water filters and membranes listed below are not manufactured or endorsed by Keystone®. The manufacturers of these water filters and reverse osmosis membranes are oftentimes Original Equipment Mfg (OEM’s) supplying to customers such as Keystone® . Although these water filters and reverse osmosis membranes are compatible for use in Keystone® 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 Keystone® equipment.

10" BB Pleated Cellulose-Polyester ECP1-BB, 1 mic

FWS # 255489-43

$14.63 
4+ for $13.17 ea
8+ for $12.44 ea
Qty:

20" BB Pleated Cellulose-Polyester ECP1-20BB, 1 mic

FWS # 255493-43

$27.69 
6+ for $24.92 ea
24+ for $20.77 ea
Qty:

20" BB Pleated Cellulose-Polyester ECP20-20BB, 20 mic

FWS # 255495-43

$25.16 
6+ for $22.64 ea
24+ for $18.87 ea
Qty:

20" BB Pleated Cellulose-Polyester ECP5-20BB, 5 mic

FWS # 255494-43

$25.16 
6+ for $22.64 ea
24+ for $18.87 ea
Qty:

20" Pleated Polyester R30-20 30 Micron Reusable

MFG # GPE30-20
FWS # 155416-43

$15.57 
14+ for $14.01 ea
140+ for $12.92 ea
Qty:

9 3/4" S1 / RS1-DS Pleated Cellulose 20 Mic

MFG # 210
FWS # RS1-DS

$2.99 
12+ for $2.69 ea
24+ for $2.54 ea
48+ for $2.39 ea
96+ for $1.94 ea
Qty:

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

MFG # SP-510
FWS # GD-25-1005

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

9-7/8" Sediment Depth Filter - 20 Mic (PX20-9 7/8)

MFG # SP-2510
FWS # 93021

$3.36 
40+ for $1.88 ea
Qty:

9-3/4" Pleated Polyester R30 - 30 Micron

MFG # 525
FWS # 155017-43

$7.26 
Qty:

9-3/4" x 2-3/4" Flow-max® - 50 mic Pleated Poly

MFG # 550
FWS # FM-50-975

$4.92 
Qty:

10" EPM-10 Carbon Block 10 micron

MFG # 902
FWS # 155634-43

$9.65 
12+ for $9.17 ea
36+ for $8.69 ea
Qty:

9-3/4" CBC-10 Carbon Block-CTO/VOC, 0.5 mic

MFG # 910
FWS # 155162-43

$10.98 
12+ for $10.43 ea
36+ for $9.88 ea
Qty:

10" BB Pleated Cellulose-Polyester ECP5-BB, 5 mic

MFG # GPC5
FWS # 255490-43

$14.17 
4+ for $12.75 ea
8+ for $12.04 ea
Qty:

10" BB Pleated Cellulose-Polyester ECP20-BB, 20 mic

MFG # GC20
FWS # 255491-43

$14.17 
4+ for $12.75 ea
8+ for $12.04 ea
Qty:

10" BB Pleated Polyester R30-BB - 30 Micron

MFG # GPE30
FWS # 155101-43

$16.22 
4+ for $14.60 ea
8+ for $13.79 ea
Qty:

10" BB Pleated Polyester R50-BB - 50 - micron

MFG # GPE50
FWS # 155053-43

$12.89 
4+ for $12.25 ea
8+ for $11.60 ea
Qty:

10" BB NCP-BB Carbon Impreganted Non-Cellulose Pleated 10 mic

MFG # G310
FWS # 155398-43

$19.67 
4+ for $17.70 ea
8+ for $16.72 ea
Qty:

10" BB CBC-BB Carbon Block CTO/VOC, .5 mic

MFG # GBR
FWS # 155170-43

$34.88 
Set of 4 for $32.44 ea
Qty:

20” BB S1-20BB Pleated Cellulose 20 mic

MFG # GPC20-20
FWS # 155305-43

$19.05 
6+ for $18.10 ea
24+ for $16.95 ea
60+ for $16.00 ea
Qty:

20" BB Pleated Polyester R30-20BB - 30 Micron

MFG # GPE30-20
FWS # 155430-43

$29.48 
6+ for $26.53 ea
24+ for $22.11 ea
Qty:

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