
Watts (WQC4RO-FILTERKIT) Kwik Change 11" Pre- and Post- Filter and Membrane Replacement 4 Pack
WQC4RO-FILTERKIT 11" Four-Stage Filter & Membrane Pack
The Watts WQC4RO-FILTERKIT delivers everything you need to service a Kwik-Change reverse osmosis system for a full year. This four-pack includes WQCSC11 sediment pre-filter, WQCCC11 carbon block, WQCM11-50 membrane (50 GPD), and WQCGAC11 post-filter — all engineered with double O-rings and internal flow shut-off for leak-free, tool-free replacement every six months.
Four-Stage Reverse Osmosis Protection
WQCSC11
5 micron nominal pre-filter removes dirt, rust, and sediment to protect downstream cartridges and membrane
WQCCC11
10 micron carbon block reduces chlorine, taste, and odor before water reaches the membrane
WQCM11-50
50 gallon-per-day reverse osmosis membrane removes dissolved solids, contaminants, and impurities
WQCGAC11
10 micron granulated activated carbon post-filter for final taste and odor refinement
Kwik-Change Engineering Advantages
Double O-Ring Seals
Dual O-ring design on every cartridge eliminates leaks and ensures reliable sealing without tools or excessive force
Internal Shut-Off Valves
Built-in flow control valves automatically stop water when cartridges are removed — no need to shut off supply lines
Tool-Free Replacement
Quarter-turn cartridge removal and installation with no wrenches, housing sumps, or complicated disassembly required
Standard 11" Format
All four cartridges use the same 11-inch Kwik-Change platform for uniform sizing and simplified inventory
Six-Month Service Cycle
Replace pre- and post-filters every six months, membrane annually — this kit covers one full year of maintenance
Complete Kit Convenience
All four stages in one package means no guessing on part numbers or ordering filters separately throughout the year
Designed for Watts Kwik-Change RO Systems
This WQC4RO-FILTERKIT is engineered specifically for Watts Kwik-Change reverse osmosis systems that use 11-inch cartridge housings. Compatible with systems requiring WQCSC11, WQCCC11, WQCM11-50, and WQCGAC11 replacement cartridges. Ideal for residential under-sink installations, whole-home RO systems, and light commercial applications where tool-free maintenance and leak prevention are priorities. Verify your system uses Kwik-Change 11" cartridges before ordering.
Watts has been engineering reliable water treatment solutions for decades, and the Kwik-Change platform reflects that commitment to quality and ease of service.
WQC4RO-FILTERKIT 11" Four-Stage Filter & Membrane Pack
The Watts WQC4RO-FILTERKIT delivers everything you need to service a Kwik-Change reverse osmosis system for a full year. This four-pack includes WQCSC11 sediment pre-filter, WQCCC11 carbon block, WQCM11-50 membrane (50 GPD), and WQCGAC11 post-filter — all engineered with double O-rings and internal flow shut-off for leak-free, tool-free replacement every six months.
Four-Stage Reverse Osmosis Protection
WQCSC11
5 micron nominal pre-filter removes dirt, rust, and sediment to protect downstream cartridges and membrane
WQCCC11
10 micron carbon block reduces chlorine, taste, and odor before water reaches the membrane
WQCM11-50
50 gallon-per-day reverse osmosis membrane removes dissolved solids, contaminants, and impurities
WQCGAC11
10 micron granulated activated carbon post-filter for final taste and odor refinement
Kwik-Change Engineering Advantages
Double O-Ring Seals
Dual O-ring design on every cartridge eliminates leaks and ensures reliable sealing without tools or excessive force
Internal Shut-Off Valves
Built-in flow control valves automatically stop water when cartridges are removed — no need to shut off supply lines
Tool-Free Replacement
Quarter-turn cartridge removal and installation with no wrenches, housing sumps, or complicated disassembly required
Standard 11" Format
All four cartridges use the same 11-inch Kwik-Change platform for uniform sizing and simplified inventory
Six-Month Service Cycle
Replace pre- and post-filters every six months, membrane annually — this kit covers one full year of maintenance
Complete Kit Convenience
All four stages in one package means no guessing on part numbers or ordering filters separately throughout the year
Designed for Watts Kwik-Change RO Systems
This WQC4RO-FILTERKIT is engineered specifically for Watts Kwik-Change reverse osmosis systems that use 11-inch cartridge housings. Compatible with systems requiring WQCSC11, WQCCC11, WQCM11-50, and WQCGAC11 replacement cartridges. Ideal for residential under-sink installations, whole-home RO systems, and light commercial applications where tool-free maintenance and leak prevention are priorities. Verify your system uses Kwik-Change 11" cartridges before ordering.
Watts has been engineering reliable water treatment solutions for decades, and the Kwik-Change platform reflects that commitment to quality and ease of service.
Original: $228.99
-65%$228.99
$80.15Description
WQC4RO-FILTERKIT 11" Four-Stage Filter & Membrane Pack
The Watts WQC4RO-FILTERKIT delivers everything you need to service a Kwik-Change reverse osmosis system for a full year. This four-pack includes WQCSC11 sediment pre-filter, WQCCC11 carbon block, WQCM11-50 membrane (50 GPD), and WQCGAC11 post-filter — all engineered with double O-rings and internal flow shut-off for leak-free, tool-free replacement every six months.
Four-Stage Reverse Osmosis Protection
WQCSC11
5 micron nominal pre-filter removes dirt, rust, and sediment to protect downstream cartridges and membrane
WQCCC11
10 micron carbon block reduces chlorine, taste, and odor before water reaches the membrane
WQCM11-50
50 gallon-per-day reverse osmosis membrane removes dissolved solids, contaminants, and impurities
WQCGAC11
10 micron granulated activated carbon post-filter for final taste and odor refinement
Kwik-Change Engineering Advantages
Double O-Ring Seals
Dual O-ring design on every cartridge eliminates leaks and ensures reliable sealing without tools or excessive force
Internal Shut-Off Valves
Built-in flow control valves automatically stop water when cartridges are removed — no need to shut off supply lines
Tool-Free Replacement
Quarter-turn cartridge removal and installation with no wrenches, housing sumps, or complicated disassembly required
Standard 11" Format
All four cartridges use the same 11-inch Kwik-Change platform for uniform sizing and simplified inventory
Six-Month Service Cycle
Replace pre- and post-filters every six months, membrane annually — this kit covers one full year of maintenance
Complete Kit Convenience
All four stages in one package means no guessing on part numbers or ordering filters separately throughout the year
Designed for Watts Kwik-Change RO Systems
This WQC4RO-FILTERKIT is engineered specifically for Watts Kwik-Change reverse osmosis systems that use 11-inch cartridge housings. Compatible with systems requiring WQCSC11, WQCCC11, WQCM11-50, and WQCGAC11 replacement cartridges. Ideal for residential under-sink installations, whole-home RO systems, and light commercial applications where tool-free maintenance and leak prevention are priorities. Verify your system uses Kwik-Change 11" cartridges before ordering.
Watts has been engineering reliable water treatment solutions for decades, and the Kwik-Change platform reflects that commitment to quality and ease of service.




