
Omnipure - E5421-P - 8" x 2.5" E-Series 10 Micron Carbon Block, Phosphate Filter - Scale Inhibitor
10 Micron Carbon Block Filter with Phosphate Scale Inhibitor
The E5421-P combines chlorine reduction with active scale prevention in a compact 8" inline format, designed for easy tool-free installation in residential and commercial applications.
Dual-action filtration and scale prevention in one cartridge
Carbon Block Structure
Compressed activated carbon at 10 micron rating removes chlorine taste and odor while providing mechanical filtration for sediment and particulate matter.
Polyphosphate Scale Control
Integrated phosphate media sequesters calcium and magnesium ions before they precipitate, protecting equipment and extending appliance lifespan.
Quick-Change Caps
Proprietary end caps allow tool-free installation and removal. No wrenches, no mess. Ideal for tight spaces and frequent service schedules.
Inline Design
Compact 8" x 2.5" form factor fits standard Omnipure E-Series housings. Rated for 0.5 GPM flow at up to 125 PSI and 100°F maximum temperature.
Fits Omnipure E-Series inline housings
This filter is designed for use with Omnipure E-Series inline filter housings that accept 8" x 2.5" diameter cartridges with quick-change end caps. Commonly used in reverse osmosis systems, ice makers, beverage equipment, and point-of-use applications where both chlorine removal and scale prevention are required. Verify housing compatibility before ordering.
Replacement schedule based on water quality and usage
Capacity Limit
Maximum gallons processed before carbon exhaustion and phosphate depletion reduce effectiveness.
Time-Based Service
Replace annually regardless of volume to maintain chlorine reduction and scale inhibitor performance.
Performance Indicators
Replace sooner if you notice chlorine taste or odor returning, reduced flow rate, or visible scale formation on fixtures.
Compact Footprint
8" length fits tight installations without sacrificing filtration or scale control capacity.
Chlorine Reduction
Carbon block construction effectively removes chlorine taste and odor from municipal water supplies.
Tool-Free Service
Quick-change caps make filter replacement simple and clean, even in confined spaces.
Extended Protection
Polyphosphate scale inhibitor protects equipment and plumbing for up to one year of service.
10 Micron Carbon Block Filter with Phosphate Scale Inhibitor
The E5421-P combines chlorine reduction with active scale prevention in a compact 8" inline format, designed for easy tool-free installation in residential and commercial applications.
Dual-action filtration and scale prevention in one cartridge
Carbon Block Structure
Compressed activated carbon at 10 micron rating removes chlorine taste and odor while providing mechanical filtration for sediment and particulate matter.
Polyphosphate Scale Control
Integrated phosphate media sequesters calcium and magnesium ions before they precipitate, protecting equipment and extending appliance lifespan.
Quick-Change Caps
Proprietary end caps allow tool-free installation and removal. No wrenches, no mess. Ideal for tight spaces and frequent service schedules.
Inline Design
Compact 8" x 2.5" form factor fits standard Omnipure E-Series housings. Rated for 0.5 GPM flow at up to 125 PSI and 100°F maximum temperature.
Fits Omnipure E-Series inline housings
This filter is designed for use with Omnipure E-Series inline filter housings that accept 8" x 2.5" diameter cartridges with quick-change end caps. Commonly used in reverse osmosis systems, ice makers, beverage equipment, and point-of-use applications where both chlorine removal and scale prevention are required. Verify housing compatibility before ordering.
Replacement schedule based on water quality and usage
Capacity Limit
Maximum gallons processed before carbon exhaustion and phosphate depletion reduce effectiveness.
Time-Based Service
Replace annually regardless of volume to maintain chlorine reduction and scale inhibitor performance.
Performance Indicators
Replace sooner if you notice chlorine taste or odor returning, reduced flow rate, or visible scale formation on fixtures.
Compact Footprint
8" length fits tight installations without sacrificing filtration or scale control capacity.
Chlorine Reduction
Carbon block construction effectively removes chlorine taste and odor from municipal water supplies.
Tool-Free Service
Quick-change caps make filter replacement simple and clean, even in confined spaces.
Extended Protection
Polyphosphate scale inhibitor protects equipment and plumbing for up to one year of service.
Original: $47.99
-65%$47.99
$16.80Description
10 Micron Carbon Block Filter with Phosphate Scale Inhibitor
The E5421-P combines chlorine reduction with active scale prevention in a compact 8" inline format, designed for easy tool-free installation in residential and commercial applications.
Dual-action filtration and scale prevention in one cartridge
Carbon Block Structure
Compressed activated carbon at 10 micron rating removes chlorine taste and odor while providing mechanical filtration for sediment and particulate matter.
Polyphosphate Scale Control
Integrated phosphate media sequesters calcium and magnesium ions before they precipitate, protecting equipment and extending appliance lifespan.
Quick-Change Caps
Proprietary end caps allow tool-free installation and removal. No wrenches, no mess. Ideal for tight spaces and frequent service schedules.
Inline Design
Compact 8" x 2.5" form factor fits standard Omnipure E-Series housings. Rated for 0.5 GPM flow at up to 125 PSI and 100°F maximum temperature.
Fits Omnipure E-Series inline housings
This filter is designed for use with Omnipure E-Series inline filter housings that accept 8" x 2.5" diameter cartridges with quick-change end caps. Commonly used in reverse osmosis systems, ice makers, beverage equipment, and point-of-use applications where both chlorine removal and scale prevention are required. Verify housing compatibility before ordering.
Replacement schedule based on water quality and usage
Capacity Limit
Maximum gallons processed before carbon exhaustion and phosphate depletion reduce effectiveness.
Time-Based Service
Replace annually regardless of volume to maintain chlorine reduction and scale inhibitor performance.
Performance Indicators
Replace sooner if you notice chlorine taste or odor returning, reduced flow rate, or visible scale formation on fixtures.
Compact Footprint
8" length fits tight installations without sacrificing filtration or scale control capacity.
Chlorine Reduction
Carbon block construction effectively removes chlorine taste and odor from municipal water supplies.
Tool-Free Service
Quick-change caps make filter replacement simple and clean, even in confined spaces.
Extended Protection
Polyphosphate scale inhibitor protects equipment and plumbing for up to one year of service.



















