R.O. Filters

Replacement RO and RO/DI filter cartridges for consistently pure water.

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  • SpectraPure SpectraSelect Plus 99% Rejection RO Membrane 90 GPD (MEM-SP-0090)

    SpectraPure SpectraSelect Plus 99% Rejection RO Membrane 90 GPD (MEM-SP-0090)

    SpectraPure SpectraSelect Plus 99% Rejection RO Membrane 90 GPD (MEM-SP-0090)

    $72.99
    Sale price  $72.99 Regular price 
  • SpectraPure Reminrealization Cartridge, 2.5" x 10" (FA-REMIN-10)

    SpectraPure Reminrealization Cartridge, 2.5" x 10" (FA-REMIN-10)

    SpectraPure Reminrealization Cartridge, 2.5" x 10" (FA-REMIN-10)

    $34.99
    Sale price  $34.99 Regular price 
  • SpectraPure Silica Buster DI Filter, 10" (DI-SB-10)

    SpectraPure Silica Buster DI Filter, 10" (DI-SB-10)

    SpectraPure Silica Buster DI Filter, 10" (DI-SB-10)

    $36.99
    Sale price  $36.99 Regular price 
  • SpectraPure Silica Buster SuperDI High Capacity Cartridge (NON INDICATING), 10" (DI-SB-10HC)

    SpectraPure Silica Buster SuperDI High Capacity Cartridge (NON INDICATING), 10" (DI-SB-10HC)

    SpectraPure Silica Buster SuperDI High Capacity Cartridge (NON INDICATING), 10" (DI-SB-10HC)

    $46.99
    Sale price  $46.99 Regular price 
  • SpectraPure Mega MaxCap DI Cartridge, 10" (DI-MMC-10)

    SpectraPure Mega MaxCap DI Cartridge, 10" (DI-MMC-10)

    SpectraPure Mega MaxCap DI Cartridge, 10" (DI-MMC-10)

    $49.99
    Sale price  $49.99 Regular price 
  • SpectraPure Super DI High Capacity Silica Buster DI Cartridge Color Indicating, 10" (DI-SB-CI-10HC)

    SpectraPure Super DI High Capacity Silica Buster DI Cartridge Color Indicating, 10" (DI-SB-CI-10HC)

    SpectraPure Super DI High Capacity Silica Buster DI Cartridge Color Indicating, 10" (DI-SB-CI-10HC)

    $49.99
    Sale price  $49.99 Regular price 
  • SpectraPure Silica Buster Color Changing DI Cartridge, 10"

    SpectraPure Silica Buster Color Changing DI Cartridge, 10"

    SpectraPure Silica Buster Color Changing DI Cartridge, 10"

    $36.99
    Sale price  $36.99 Regular price 
  • SpectraPure MaxCap DI Cartridge, 10"

    SpectraPure MaxCap DI Cartridge, 10"

    SpectraPure MaxCap DI Cartridge, 10"

    $35.21
    Sale price  $35.21 Regular price  $41.99
  • SpectraPure Ammonia Removal Color-Indicating DI Cartridge - 10" (DI-AR-CI-10)

    SpectraPure Ammonia Removal Color-Indicating DI Cartridge - 10" (DI-AR-CI-10)

    SpectraPure Ammonia Removal Color-Indicating DI Cartridge - 10" (DI-AR-CI-10)

    $32.18
    Sale price  $32.18 Regular price 
  • SpectraPure High Capacity Mixed Bed DI Cartridge - 10" (DI-MB-10HC)

    SpectraPure High Capacity Mixed Bed DI Cartridge - 10" (DI-MB-10HC)

    SpectraPure High Capacity Mixed Bed DI Cartridge - 10" (DI-MB-10HC)

    $46.99
    Sale price  $46.99 Regular price  $49.99
  • SpectraPure Super DI High Capacity Maxcap Di Cartridge, 10" (DI-MC-10HC)

    SpectraPure Super DI High Capacity Maxcap Di Cartridge, 10" (DI-MC-10HC)

    SpectraPure Super DI High Capacity Maxcap Di Cartridge, 10" (DI-MC-10HC)

    $49.99
    Sale price  $49.99 Regular price 
  • SpectraPure MicroTec Sediment Filter Cartridge - 0.5 Micron, 10" (SF-MT-0.5-10)

    SpectraPure MicroTec Sediment Filter Cartridge - 0.5 Micron, 10" (SF-MT-0.5-10)

    SpectraPure MicroTec Sediment Filter Cartridge - 0.5 Micron, 10" (SF-MT-0.5-10)

    $12.99
    Sale price  $12.99 Regular price 
  • SpectraPure Carbon Block Filter Cartridge - 1 Micron, 10" (CF-1-10)

    SpectraPure Carbon Block Filter Cartridge - 1 Micron, 10" (CF-1-10)

    SpectraPure Carbon Block Filter Cartridge - 1 Micron, 10" (CF-1-10)

    $12.99
    Sale price  $12.99 Regular price  $14.99
  • SpectraPure Super DI High Capacity Mixed Bed DI Cartridge Color Indicating, 10"

    SpectraPure Super DI High Capacity Mixed Bed DI Cartridge Color Indicating, 10"

    SpectraPure Super DI High Capacity Mixed Bed DI Cartridge Color Indicating, 10"

    $45.99
    Sale price  $45.99 Regular price  $51.99
  • SpectraPure MicroTec Sediment Filter Cartridge - 1 Micron, 10" (SF-MT-1-10)

    SpectraPure MicroTec Sediment Filter Cartridge - 1 Micron, 10" (SF-MT-1-10)

    SpectraPure MicroTec Sediment Filter Cartridge - 1 Micron, 10" (SF-MT-1-10)

    $7.99
    Sale price  $7.99 Regular price 
  • SpectraPure Color Indicating Mixed Bed DI Cartridge, 10"

    SpectraPure Color Indicating Mixed Bed DI Cartridge, 10"

    SpectraPure Color Indicating Mixed Bed DI Cartridge, 10"

    $39.99
    Sale price  $39.99 Regular price 
  • SpectraPure Carbon Block Filter Cartridge - 0.5 Micron, 10" (CF-0.5-10)

    SpectraPure Carbon Block Filter Cartridge - 0.5 Micron, 10" (CF-0.5-10)

    SpectraPure Carbon Block Filter Cartridge - 0.5 Micron, 10" (CF-0.5-10)

    $13.99
    Sale price  $13.99 Regular price  $14.99
  • SpectraPure (Absolute) ZetaZorb Sediment Filter Cartridge - 0.2 Micron, 10" (SF-ZZ-0.2ABS-10)

    SpectraPure (Absolute) ZetaZorb Sediment Filter Cartridge - 0.2 Micron, 10" (SF-ZZ-0.2ABS-10)

    SpectraPure (Absolute) ZetaZorb Sediment Filter Cartridge - 0.2 Micron, 10" (SF-ZZ-0.2ABS-10)

    $55.99
    Sale price  $55.99 Regular price 
  • SpectraPure Mixed-Bed Color-Indicating DI Resin - 5 Liter Bag (RES-MB-CI-5L)

    SpectraPure Mixed-Bed Color-Indicating DI Resin - 5 Liter Bag (RES-MB-CI-5L)

    SpectraPure Mixed-Bed Color-Indicating DI Resin - 5 Liter Bag (RES-MB-CI-5L)

    $157.99
    Sale price  $157.99 Regular price 
  • SpectraPure Mixed-Bed Semi-Conductor Grade DI Resin - 5L Bag (RES-MB-SC-5L)

    SpectraPure Mixed-Bed Semi-Conductor Grade DI Resin - 5L Bag (RES-MB-SC-5L)

    SpectraPure Mixed-Bed Semi-Conductor Grade DI Resin - 5L Bag (RES-MB-SC-5L)

    $120.30
    Sale price  $120.30 Regular price 
  • SpectraPure Strong-Base-Anion Semi-Conductor Grade DI Resin - 5L Bag (RES-SBA-SC-5L)

    SpectraPure Strong-Base-Anion Semi-Conductor Grade DI Resin - 5L Bag (RES-SBA-SC-5L)

    SpectraPure Strong-Base-Anion Semi-Conductor Grade DI Resin - 5L Bag (RES-SBA-SC-5L)

    $95.21
    Sale price  $95.21 Regular price 
  • SpectraPure Strong-Acid-Cation Semi-Conductor Grade DI Resin - 5L Bag (RES-SAC-SC-5L)

    SpectraPure Strong-Acid-Cation Semi-Conductor Grade DI Resin - 5L Bag (RES-SAC-SC-5L)

    SpectraPure Strong-Acid-Cation Semi-Conductor Grade DI Resin - 5L Bag (RES-SAC-SC-5L)

    $85.99
    Sale price  $85.99 Regular price 
  • SpectraPure Standard 90 GPD RO Membrane (MEM-0090)

    SpectraPure Standard 90 GPD RO Membrane (MEM-0090)

    SpectraPure Standard 90 GPD RO Membrane (MEM-0090)

    $49.99
    Sale price  $49.99 Regular price  $56.99
  • SpectraPure 99% Ultra High Rejection TFC Replacement Membrane 150 GPD (MEM-SP-0150)

    SpectraPure 99% Ultra High Rejection TFC Replacement Membrane 150 GPD (MEM-SP-0150)

    SpectraPure 99% Ultra High Rejection TFC Replacement Membrane 150 GPD (MEM-SP-0150)

    $59.99
    Sale price  $59.99 Regular price