Home Replacement Water Filters Keystone

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 Pentek Pleated Cellulose-Polyester ECP1-BB 1 mic Filter

FWS # 255489-43

MSRP: $15.85
$12.59 
8+ for $11.96 ea
Qty:

20" BB Pentek Pleated Cellulose-Polyester ECP1-20BB 1 mic Filter

FWS # 255493-43

MSRP: $31.69
$24.87 
8+ for $23.63 ea
Qty:

20" BB Pentek Pleated Cellulose-Polyester ECP20-20BB 20 mic Filter

FWS # 255495-43

MSRP: $28.79
$22.99 
8+ for $21.84 ea
Qty:

20" BB Pentek Pleated Cellulose-Polyester ECP5-20BB 5 mic Filter

FWS # 255494-43

MSRP: $28.79
$22.99 
8+ for $21.84 ea
Qty:

20" Pentek R30-20 Reusable Pleated Polyester 30 Micron Filter

MFG # GPE30-20
FWS # 155416-43

MSRP: $16.88
$12.16 
14+ for $11.55 ea
Qty:

9 3/4" Omnifilter RS1-SS Pleated Cellulose 20 Mic Filter

FWS # RS1-SS

MSRP: $4.00
$3.46 
48+ for $2.84 ea
300+ Call
Qty:

9 7/8" Omnifilter RS2-DS String Wound Polypropylene 5 Micron Filter, 2-Pack

MFG # W5
FWS # RS2-DS

MSRP: $8.99
$6.99
$4.95 
60+ for $4.46 ea
Qty:

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

FWS # SDG-25-1005

$5.99 
40+ for $4.19 ea
Qty:

9 3/4" Omnifilter S1 / RS1-DS Pleated Cellulose 20 Mic Filter, 2-Pack

MFG # 210
FWS # RS1-DS

$6.58 
48+ for $5.40 ea
300+ Call
Qty:

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

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

$2.97 
40+ for $2.08 ea
Qty:

9-3/4" Pentek R30 Pleated Polyester 30 Mic Filter

MFG # 525
FWS # 155017-43

MSRP: $8.80
$6.99 
24+ for $6.64 ea
Qty:

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

MFG # 550
FWS # FM-50-975

MSRP: $6.64
$4.03 
Qty:

Pentek 155634-43 EPM-10 Carbon Block 10 micron Filter

MFG # 902

MSRP: $7.50
$7.21 
12+ for $6.49 ea
Color/Size
Cartridge only
add Sediment Prefilter [+$1.80]

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

MFG # 910
FWS # 155162-43

MSRP: $16.42
$11.95 
12+ for $11.35 ea
Qty:

10" BB Pentek Pleated Cellulose-Polyester ECP5-BB 5 mic Filter

MFG # GPC5
FWS # 255490-43

MSRP: $15.35
$11.49 
8+ for $10.92 ea
Qty:

10" BB Pentek Pleated Cellulose-Polyester ECP20-BB 20 mic Filter

MFG # GC20
FWS # 255491-43

MSRP: $15.35
$12.17 
8+ for $11.56 ea
Qty:

10" BB Pentek R30-BB Pleated Polyester 30 Mic Filter

MFG # GPE30
FWS # 155101-43

MSRP: $14.40
$13.29 
8+ for $12.63 ea
Qty:

10" BB Pentek R50-BB Pleated Polyester 50 mic Filter

MFG # GPE50
FWS # 155053-43

MSRP: $14.05
$10.49 
8+ for $9.97 ea
Qty:

Pentek 155398-43 NCP-BB Carbon Impregnated Non-Cellulose Pleated 10 mic Filter

MFG # G310
FWS # 155398-43

MSRP: $24.58
$16.97 
24+ for $15.78 ea
Qty:

10" BB Pentek CBC-BB Carbon Block CTO/VOC 0.5 mic Filter

MFG # GBR
FWS # 155170-43

MSRP: $50.15
$31.99 
4+ for $30.39 ea
Qty:

20" BB Pentek S1-20BB Pleated Cellulose 20 mic Filter

MFG # GPC20-20
FWS # 155305-43

MSRP: $22.13
$16.96 
6+ for $16.11 ea
Qty:

20" BB Pentek R30-20BB Pleated Polyester 30 mic Filter

MFG # GPE30-20
FWS # 155430-43

MSRP: $35.73
$25.46 
6+ for $20.88 ea
Qty:

20" BB Pentek CBC-20BB Carbon Block CTO/VOC 0.5 mic Filter

MFG # GBR-20
FWS # 155312-43

MSRP: $108.28
$65.98 
12+ for $62.68 ea
Qty:

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