ICS-SIK Replacement Filter for ICS-SI System

Name: Cascadian Water ICS-SIK Replacement Filter for ICS-SI System - ICS-SIK Replacement Filter for ICS-SI System
Brand: Cascadian Water
SKU: 41552896557237
Price: 371.8 USD
Availability: InStock
Rating: 5 (7 reviews)

4.5 (1,234)

Sold 100+ last 30 days

20% off first order

$371.80

Quantity

One time purchase

$371.80

Subscribe & save

Save 10%

$334.62$371.80

Delivers every 6 months

Color

Black

Quantity

Description

ICS-SIK cartridge filter replacement kit The ICS-SIK Sediment and Iron cartridge filter replacement kit is designed specifically for the Cascadian ICS-SI and engineered to filter sediment, iron and manganese from all the water for every use...

Reviews

5.0

7 ratings

Cleaner and better tasting water

After ordering filters, delivery was quick and efficient. Not only does the water taste better, I noticed that the filter screens on the facets stay cleaner alot longer. Great product and service. TOM

Thomas · March 19, 2026

Replacement filters and site visit

Devon came to our house to review our system and was able to identify a new filter that would help with hardness of water. The water is indeed softer less water spots in the stainless sinks. I’m extremely happy with the results and Cascadian Water!

David · June 20, 2024

Great filter that takes the iron out of our water

My unfiltered water rusted my washing machine and stained the toilet and tub. The process has been corrected.

Kathleen · February 7, 2024

Delivery & Returns

Cascadian Water

4.6 (144)

Product description loading

This is the product description text that will appear here.

Cascadian Water

ICS-STK Replacement Water Filter for ICS-ST System

$260.70

Cascadian Water

ICS-TPUK PolyHalt® and PolyCor™ Replacement Water Filter for ICS-TPU System

$97.00

Cascadian Water

ICS-SP1242K Nuvo Manor Alternative PolyHalt® Softener

(4)

$264.00

Cascadian Water

ICS-SP1222K Nuvo Home Alternative PolyHalt® Softener

(8)

$161.70

40% off

US Water Systems

Omnipure Filter Q5633 Series

$19.95$33.25

Cascadian Water

ICS-S5K Replacment Water Filter for ICS-S5 System

(4)

$88.33

Cascadian Water

Water Quality Test Kits

(3)

$99.95

Cascadian Water

ICS-CTP35K Replacement Water Filter for ICS-CTP35 System

$475.20

40% off

US Water Systems

US Water Systems AR-4 RO Replacement Filter Pack

$64.95$108.25

Cascadian Water

Ultraviolet Lamp for Luminor Blackcomb LB5-061 | 6-11 gpm

$121.54

40% off

US Water Systems

US Water Systems Spun Poly Sediment Filter 4.5" x 20" 20 Micron

(2)

$34.95$58.25

Chandler Systems Inc

Filter Rebuild Kit--RKSSFLT

$156.06

Cascadian Water

P-SW-1A Housing Wrench for small 1st Generation POU systems

$8.49

Hydron BW-4040 | Commercial Reverse Osmosis Membrane | Hydron Membrane

9% off

Reverse Osmosis Superstore

Hydron BW-4040 2,400 GPD TFC Reverse Osmosis Membrane

$215.00$235.99

Cascadian Water

310038 Lamp O-Ring for Luminor UV Systems

$2.04

Cascadian Water

ICS-CTTO Commercial Activated Carbon VOC Water Filter

$1,471.20

Cascadian Water

ICS-CTP35 Commercial PolyHalt® Salt Free Water Softener

$1,701.43

Cascadian Water

ICS-ST Multimicron Sediment and Taste Filter

$1,051.22

40% off

US Water Systems

Omnipure Inline GAC Filter - K2533-SS

$24.95$41.59

Cascadian Water

ICS-STPK with PolyCor™ and PolyHalt® Replacement Water Filters for ICS-STP System

(30)

$496.10

Cascadian Water

ICS-PK Replacement Water Filter For ICS-P System

(5)

$264.00

Cascadian Water

Drain Kit for 2nd Generation POE Cascadian ICS Systems

$33.15

Cascadian Water

ICS-CTTOK Replacement Water Filter for ICS-CTTO System

$430.10

Reverse Osmosis Superstore

Pure-Q Water Filter Set

$49.99

Cascadian Water

Luminor Blackcomb UV Disinfection System | 15-30 gpm

$1,050.19

English cottage touches

Collected classics with country-house charm

iFilters

iFilters Sediment Grooved Water Filter Cartridge for LWHSD V2, LWH-D V2 Systems

(4)

$8.57

Cascadian Water

Sleeve for Luminor Blackcomb LB5-101 | 10-20 gpm

$85.68

Reverse Osmosis Superstore

Reverse Osmosis Membrane | 150 GPD | TFC-1812-150

$63.99

Cascadian Water

O-Ring for small 1st Generation POU systems

$2.78

Dining table, elevated

Table lamps, serveware, and textured linens

Cascadian Water

Black O-Ring for 1st Generation (with black cap) ICS Systems for Whole Home or Business

$9.13

Cascadian Water

ICS-SP0621K Nuvo Studio Alternative PolyHalt® Softener

(1)

$97.00

40% off

US Water Systems

Omnipure Filter Q5621 Series

$29.95$49.92

Cascadian Water

ICS-SIPK with PolyCor™ and PolyHalt® Replacement Water Filter for ICS-SIP System

(13)

$453.20

Cascadian Water

O-Ring for small 2nd Generation POU ICS Systems

$3.30

Cascadian Water

Housing Wrench 2nd Generation POE ICS Systems

$10.45

Cascadian Water

Ultraviolet Lamp for Luminor Blackcomb LB5-101 | 10-20 gpm

$139.05

Reverse Osmosis Superstore

Hydron BW-8040 Commercial Reverse Osmosis Membrane

$725.00

Cascadian Water

Ultraviolet Lamp for Luminor Blackcomb LB5-201 | 20-39 gpm

$165.83

Isopure Water

IPW Industries - Compatible 3 Stage Replacement Filter Set for Whole House Water Filters | Compatible to Hydronix™ SDC-45-2005, CB-45-2005, CB-45-2010 | Removes Sediment, Chlorine, Taste & Odor

$149.99

Spring-Clear.co.uk

Cascade CAS120 Leadex - Heavy Metal Replacement Filter

$155.00

Cascadian Water

Luminor Blackcomb UV Disinfection System | 20-39 gpm

$1,336.42

Evolution RO1000 ChloraShield Carbon PreFilter

Reverse Osmosis Superstore

Hydro-Logic Evolution RO1000 ChloraShield Carbon Filter

$95.00

Cascadian Water

Pressure Gauge Port Plug, Brass w/ O-ring

$4.40

Cascadian Water

ICS-TPK with PolyCor™ and PolyHalt® Replacement Water Filter for ICS-TP System

(24)

$264.00

Cascadian Water

ICS-SPU PolyHalt® and PolyCor™ Softener and Sediment Filter - Point of Use

$309.35

ICS-P USES OUR SALT FREE WATER SOFTENING MEDIA POLYHALT TO GIVE YOU MOUNTAIN FRESH WATER

Cascadian Water

ICS-P PolyHalt® Ion Bond Salt Free Water Softener

$860.20

40% off

US Water Systems

4-Stage Q Series Replacement Filters

$64.95$108.25

Salt Free PolyHalt water softener with activated carbon for taste and odor

Cascadian Water

ICS-SP Sediment with PolyHalt® and PolyCor™ Salt Free Softener Water Treatment System

(2)

$860.20

Living room glow up

Chic lighting, side tables, and linen layers.

Cascadian Water

Bottom Drain Valve 1st Generation POE ICS Systems

$26.42

Cascadian Water

Luminor Blackcomb UV Disinfection System | 6-11 gpm

$673.52

40% off

US Water Systems

Omnipure K2505-SS Inline Sediment Filter

$19.95$33.25

Cascadian Water

Housing Wrench for 2nd Generation POU ICS Systems

$4.62

40% off

US Water Systems

US Water Systems Spun Poly Sediment Filter 2.5" x 20" 1 Micron

$12.95$21.59

Isopure Water

IPW Industries Inc (1025KDF85) 9.75"x3" (1 Lbs) KDF-85-GAC Carbon Iron & Hydrogen Sulfide Removal Filter

$30.99

Cascadian Water

Sleeve for Luminor Blackcomb LB5-151 | 15-30 gpm

$139.74

40% off

US Water Systems

Omnipure Q-Series Reverse Osmosis Membrane

(1)

$94.95$158.25

Cascadian Water

PG-0100 Pressure Gauge for 2nd Gen POE Treatment Systems

$27.50

Cascadian Water

ICS-SI Multimicron Sediment and Iron Filter

$1,210.61

Cascadian Water

Blue O-Ring for 2nd. Generation (with blue cap) ICS Systems for Whole Home or Business

$8.30

Cascadian Water

ICS-SPK with PolyCor™ and PolyHalt® Replacement Water Filter for ICS-SP System

(30)

$264.00

19% off

US Water Systems

PurelyEZ Replacement 2-1 Sintered Carbon Block / Sediment Filter

(2)

$41.99$51.74

THE ICS TP TREATS YOUR HOME WITHOUT SALT LIKE TYPICAL WATER SOFTENERS.

Cascadian Water

ICS-TP Activated Carbon Filter with PolyHalt® and PolyCor™ Salt Free Softener and Conditioner

(5)

$860.20

Cascadian Water

ICS-PHK Replacement Water Filter for ICS-PH System

(2)

$401.50

Cascadian Water

ICS-TPU PolyHalt® and PolyCor™ Softener and Taste Filter - Point of Use

$309.35

Reverse Osmosis Superstore

Hydron HLE-4040 Reverse Osmosis Membrane

(1)

$240.00

Cascadian Water

Ultraviolet Lamp for Luminor Blackcomb LB5-151 | 15-30 gpm

$167.89

59% off

AquaPureFilters.com

Aqua-Pure™ AP902 Whole House Sediment Filtration System

(2)

$343.24$832.47

40% off

US Water Systems

US Water Systems Spun Poly Sediment Filter 2.5" x 10" 20 Micron

$6.95$11.59

iFilters

KDF85-10B 10" Iron, Hydrogen Sulfide, Sulfur, and Scale Well Water Filter

$129.99

Cascadian Water

ICS Whole House Filter Wrench - Pre 2019

$10.45

40% off

US Water Systems

AvantaPure Deluxe APPRO-50 Reverse Osmosis Filter Pack

$49.95$83.25

Cascadian Water

310039 Sleeve Spring for Luminor UV Systems

$10.50

Cascadian Water

ICS-SPUK PolyHalt® and PolyCor™ Replacement Water Filter for ICS-SPUK System

(3)

$97.00

Cascadian Water

ICS-PH High Capacity PolyHalt® Salt Free Water Softener

$909.54

Cascadian Water

ICS-SIP PolyHalt® and PolyCor™ Water Softener with Sediment/Iron Filter

$1,304.22

40% off

US Water Systems

3-Stage Q Series Replacement Filters For City Water

$59.95$99.92

Cascadian Water

ICS-STP PolyHalt® and PolyCor™ Water Softener with Taste/Sediment Filters

(3)

$1,353.55

Cascadian Water

SIL-LUBE

$3.85

Cascadian Water

ICS-CTS05M Commerical Sediment Filter 100 gpm

$1,233.38

Reverse Osmosis Superstore

GE Desal Commercial Reverse Osmosis Membranes

$362.40

Cascadian Water

Sleeve for Luminor Blackcomb LB5-201 | 20-39 gpm

$90.78

Isopure Water

Replacement Water Filter Replacement Set for 4 Stage Reef-Aquarium Deionized Reverse Osmosis Water Filter System; Membrane Not Included

$32.00

Filterchoice

Systems IV ITR,SIV ITR, 1011-3120, Ice Machine Carbon Filtration and Citryne Scale Control, IceTech Replacement Kit

$630.40

iFilters

Drinking Water Replacement Filter Set for 3 stage Filtration Systems

(1)

$38.99

Cascadian Water

Sleeve for Luminor Blackcomb LB5-061 | 6-11 gpm

$55.08

Cascadian Water

ICS-CTS05MK Replacement Water Filter for ICS-CTS05M System

$221.10

40% off

US Water Systems

US Water Systems Spun Poly Sediment Filter 4.5" x 10" 1 Micron

(1)

$17.95$29.92

ICS-SIK Replacement Filter for ICS-SI System

Reviews

Delivery & Returns

Cascadian Water

You might also like

ICS-STK Replacement Water Filter for ICS-ST System

ICS-TPUK PolyHalt® and PolyCor™ Replacement Water Filter for ICS-TPU System

ICS-SP1242K Nuvo Manor Alternative PolyHalt® Softener

ICS-SP1222K Nuvo Home Alternative PolyHalt® Softener

Omnipure Filter Q5633 Series

ICS-S5K Replacment Water Filter for ICS-S5 System

Water Quality Test Kits

ICS-CTP35K Replacement Water Filter for ICS-CTP35 System

US Water Systems AR-4 RO Replacement Filter Pack

Ultraviolet Lamp for Luminor Blackcomb LB5-061 | 6-11 gpm

US Water Systems Spun Poly Sediment Filter 4.5" x 20" 20 Micron

Filter Rebuild Kit--RKSSFLT

P-SW-1A Housing Wrench for small 1st Generation POU systems

Hydron BW-4040 2,400 GPD TFC Reverse Osmosis Membrane

310038 Lamp O-Ring for Luminor UV Systems

ICS-CTTO Commercial Activated Carbon VOC Water Filter

ICS-CTP35 Commercial PolyHalt® Salt Free Water Softener

ICS-ST Multimicron Sediment and Taste Filter

Omnipure Inline GAC Filter - K2533-SS

ICS-STPK with PolyCor™ and PolyHalt® Replacement Water Filters for ICS-STP System

ICS-PK Replacement Water Filter For ICS-P System

Drain Kit for 2nd Generation POE Cascadian ICS Systems

ICS-CTTOK Replacement Water Filter for ICS-CTTO System

Pure-Q Water Filter Set

Luminor Blackcomb UV Disinfection System | 15-30 gpm

iFilters Sediment Grooved Water Filter Cartridge for LWHSD V2, LWH-D V2 Systems

Sleeve for Luminor Blackcomb LB5-101 | 10-20 gpm

Reverse Osmosis Membrane | 150 GPD | TFC-1812-150

O-Ring for small 1st Generation POU systems

Black O-Ring for 1st Generation (with black cap) ICS Systems for Whole Home or Business

ICS-SP0621K Nuvo Studio Alternative PolyHalt® Softener

Omnipure Filter Q5621 Series

ICS-SIPK with PolyCor™ and PolyHalt® Replacement Water Filter for ICS-SIP System

O-Ring for small 2nd Generation POU ICS Systems

Housing Wrench 2nd Generation POE ICS Systems

Ultraviolet Lamp for Luminor Blackcomb LB5-101 | 10-20 gpm

Hydron BW-8040 Commercial Reverse Osmosis Membrane

Ultraviolet Lamp for Luminor Blackcomb LB5-201 | 20-39 gpm

IPW Industries - Compatible 3 Stage Replacement Filter Set for Whole House Water Filters | Compatible to Hydronix™ SDC-45-2005, CB-45-2005, CB-45-2010 | Removes Sediment, Chlorine, Taste & Odor

Cascade CAS120 Leadex - Heavy Metal Replacement Filter

Luminor Blackcomb UV Disinfection System | 20-39 gpm

Hydro-Logic Evolution RO1000 ChloraShield Carbon Filter

Pressure Gauge Port Plug, Brass w/ O-ring

ICS-TPK with PolyCor™ and PolyHalt® Replacement Water Filter for ICS-TP System

ICS-SPU PolyHalt® and PolyCor™ Softener and Sediment Filter - Point of Use

ICS-P PolyHalt® Ion Bond Salt Free Water Softener

4-Stage Q Series Replacement Filters

ICS-SP Sediment with PolyHalt® and PolyCor™ Salt Free Softener Water Treatment System

Bottom Drain Valve 1st Generation POE ICS Systems

Luminor Blackcomb UV Disinfection System | 6-11 gpm

Omnipure K2505-SS Inline Sediment Filter

Housing Wrench for 2nd Generation POU ICS Systems

US Water Systems Spun Poly Sediment Filter 2.5" x 20" 1 Micron

IPW Industries Inc (1025KDF85) 9.75"x3" (1 Lbs) KDF-85-GAC Carbon Iron & Hydrogen Sulfide Removal Filter

Sleeve for Luminor Blackcomb LB5-151 | 15-30 gpm

Omnipure Q-Series Reverse Osmosis Membrane

PG-0100 Pressure Gauge for 2nd Gen POE Treatment Systems

ICS-SI Multimicron Sediment and Iron Filter

Blue O-Ring for 2nd. Generation (with blue cap) ICS Systems for Whole Home or Business

ICS-SPK with PolyCor™ and PolyHalt® Replacement Water Filter for ICS-SP System

PurelyEZ Replacement 2-1 Sintered Carbon Block / Sediment Filter

ICS-TP Activated Carbon Filter with PolyHalt® and PolyCor™ Salt Free Softener and Conditioner

ICS-PHK Replacement Water Filter for ICS-PH System

ICS-TPU PolyHalt® and PolyCor™ Softener and Taste Filter - Point of Use

Hydron HLE-4040 Reverse Osmosis Membrane

Ultraviolet Lamp for Luminor Blackcomb LB5-151 | 15-30 gpm

Aqua-Pure™ AP902 Whole House Sediment Filtration System

US Water Systems Spun Poly Sediment Filter 2.5" x 10" 20 Micron

KDF85-10B 10" Iron, Hydrogen Sulfide, Sulfur, and Scale Well Water Filter

ICS Whole House Filter Wrench - Pre 2019

AvantaPure Deluxe APPRO-50 Reverse Osmosis Filter Pack

310039 Sleeve Spring for Luminor UV Systems

ICS-SPUK PolyHalt® and PolyCor™ Replacement Water Filter for ICS-SPUK System

ICS-PH High Capacity PolyHalt® Salt Free Water Softener

ICS-SIP PolyHalt® and PolyCor™ Water Softener with Sediment/Iron Filter