The Omnipure E5421 is an 8" x 2.5" carbon block filter engineered to reduce chlorine, taste, and odor at a 10 micron rating, ideal for inline or reverse osmosis pre-filtration applications. Its proprietary quick-change E-Series head design allows tool-free installation and replacement in seconds.
SPECIFICATIONS
E5421 Filter at a Glance
Dimensions
8" x 2.5"
Standard inline size
Micron Rating
10 Micron
Carbon block filtration
Flow Rate
0.5 GPM
Consistent delivery
Service Life
2,000 Gal
Or 1 year maximum
Max Pressure
125 PSI
Residential standard
Max Temperature
100°F
Cold water use
TECHNICAL DETAILS
Full E5421 Specifications
| Model Number | Omnipure E5421 |
| Series | E-Series (quick-change proprietary head) |
| Filtration Media | GAC carbon block |
| Contaminant Reduction | Chlorine, taste, odor |
| Operating Pressure | 30–125 PSI |
| Operating Temperature | 33–100°F (cold water only) |
| Replacement Interval | Every 2,000 gallons or 12 months, whichever comes first |
COMPATIBILITY & APPLICATIONS
Where the E5421 Fits
The Omnipure E5421 is designed for systems using proprietary E-Series housings with quick-change heads, commonly found in inline water filtration setups and as pre-filters in reverse osmosis systems. Its 10 micron carbon block media makes it effective for chlorine reduction and improving taste and odor in municipal water supplies. This filter is not compatible with standard 10" housings or twist-in cartridge systems. Confirm your housing accepts Omnipure E-Series filters before ordering.
💧 Pro Tip: The E-Series quick-change head eliminates the need to shut off water or unscrew a housing—just twist and pull. Keep a replacement on hand and swap it out in under 30 seconds when flow rate drops or taste changes.
