
Omnipure - Q5421 - 8" x 2.5" Q-Series Twist Off Carbon Block Filter - 10 Micron
Q5421 8" x 2.5" Twist Off Carbon Block Filter with 10 Micron Rating
Inline carbon block filtration with the convenience of Omnipure's Twist Tap system for quick, leak-free cartridge changes in RO systems, refrigerators, and beverage equipment
Activated Carbon Block with Automatic Shutoff
Twist Tap Valve
Integrated shutoff valve automatically stops water flow when you disconnect the filter body from the head. No need to turn off supply lines during cartridge changes.
Carbon Block Media
Compressed activated carbon removes chlorine taste and odor while providing 10 micron mechanical filtration for sediment and particulate reduction.
Q-Series Design
Omnipure's proprietary quarter-turn connection system. Replacement cartridge works with existing Q-Series heads in 1/4" QC, 1/4" NPT, or 3/8" NPT configurations.
Versatile Application
Rated for 0.5 GPM flow at up to 125 PSI and 100°F. Suitable for reverse osmosis systems, under-sink filters, ice makers, refrigerators, and commercial beverage equipment.
Omnipure Q5421 Filter Details
Q-Series Head Requirements
The Omnipure Q5421 is a replacement cartridge for existing Q-Series filter heads. You must have a compatible Omnipure Q-Series head installed with 1/4" Quick-Connect fittings, 1/4" female NPT threads, or 3/8" female NPT threads. This filter fits all 8" Q-Series housings including Q54xx models. The Twist Tap feature requires a Q-Series head with the corresponding valve receptacle.
Replacement Schedule
Capacity-Based Replacement
Replace the Q5421 carbon block cartridge when 1500 gallons have been filtered, or when you notice a decrease in flow rate or return of chlorine taste and odor.
Time-Based Replacement
Even with low usage, replace the Omnipure Q5421 filter annually to prevent bacterial growth and ensure optimal carbon performance.
No Shutoff Needed
Twist Tap valve stops water automatically during cartridge removal
Proven Filtration
Omnipure carbon block technology trusted in commercial and residential applications
Quick Change Design
Quarter-turn Q-Series connection for tool-free filter replacement
Multi-Application
Works in RO systems, refrigerators, ice makers, and beverage equipment
Q5421 8" x 2.5" Twist Off Carbon Block Filter with 10 Micron Rating
Inline carbon block filtration with the convenience of Omnipure's Twist Tap system for quick, leak-free cartridge changes in RO systems, refrigerators, and beverage equipment
Activated Carbon Block with Automatic Shutoff
Twist Tap Valve
Integrated shutoff valve automatically stops water flow when you disconnect the filter body from the head. No need to turn off supply lines during cartridge changes.
Carbon Block Media
Compressed activated carbon removes chlorine taste and odor while providing 10 micron mechanical filtration for sediment and particulate reduction.
Q-Series Design
Omnipure's proprietary quarter-turn connection system. Replacement cartridge works with existing Q-Series heads in 1/4" QC, 1/4" NPT, or 3/8" NPT configurations.
Versatile Application
Rated for 0.5 GPM flow at up to 125 PSI and 100°F. Suitable for reverse osmosis systems, under-sink filters, ice makers, refrigerators, and commercial beverage equipment.
Omnipure Q5421 Filter Details
Q-Series Head Requirements
The Omnipure Q5421 is a replacement cartridge for existing Q-Series filter heads. You must have a compatible Omnipure Q-Series head installed with 1/4" Quick-Connect fittings, 1/4" female NPT threads, or 3/8" female NPT threads. This filter fits all 8" Q-Series housings including Q54xx models. The Twist Tap feature requires a Q-Series head with the corresponding valve receptacle.
Replacement Schedule
Capacity-Based Replacement
Replace the Q5421 carbon block cartridge when 1500 gallons have been filtered, or when you notice a decrease in flow rate or return of chlorine taste and odor.
Time-Based Replacement
Even with low usage, replace the Omnipure Q5421 filter annually to prevent bacterial growth and ensure optimal carbon performance.
No Shutoff Needed
Twist Tap valve stops water automatically during cartridge removal
Proven Filtration
Omnipure carbon block technology trusted in commercial and residential applications
Quick Change Design
Quarter-turn Q-Series connection for tool-free filter replacement
Multi-Application
Works in RO systems, refrigerators, ice makers, and beverage equipment
Original: $22.23
-65%$22.23
$7.78Description
Q5421 8" x 2.5" Twist Off Carbon Block Filter with 10 Micron Rating
Inline carbon block filtration with the convenience of Omnipure's Twist Tap system for quick, leak-free cartridge changes in RO systems, refrigerators, and beverage equipment
Activated Carbon Block with Automatic Shutoff
Twist Tap Valve
Integrated shutoff valve automatically stops water flow when you disconnect the filter body from the head. No need to turn off supply lines during cartridge changes.
Carbon Block Media
Compressed activated carbon removes chlorine taste and odor while providing 10 micron mechanical filtration for sediment and particulate reduction.
Q-Series Design
Omnipure's proprietary quarter-turn connection system. Replacement cartridge works with existing Q-Series heads in 1/4" QC, 1/4" NPT, or 3/8" NPT configurations.
Versatile Application
Rated for 0.5 GPM flow at up to 125 PSI and 100°F. Suitable for reverse osmosis systems, under-sink filters, ice makers, refrigerators, and commercial beverage equipment.
Omnipure Q5421 Filter Details
Q-Series Head Requirements
The Omnipure Q5421 is a replacement cartridge for existing Q-Series filter heads. You must have a compatible Omnipure Q-Series head installed with 1/4" Quick-Connect fittings, 1/4" female NPT threads, or 3/8" female NPT threads. This filter fits all 8" Q-Series housings including Q54xx models. The Twist Tap feature requires a Q-Series head with the corresponding valve receptacle.
Replacement Schedule
Capacity-Based Replacement
Replace the Q5421 carbon block cartridge when 1500 gallons have been filtered, or when you notice a decrease in flow rate or return of chlorine taste and odor.
Time-Based Replacement
Even with low usage, replace the Omnipure Q5421 filter annually to prevent bacterial growth and ensure optimal carbon performance.
No Shutoff Needed
Twist Tap valve stops water automatically during cartridge removal
Proven Filtration
Omnipure carbon block technology trusted in commercial and residential applications
Quick Change Design
Quarter-turn Q-Series connection for tool-free filter replacement
Multi-Application
Works in RO systems, refrigerators, ice makers, and beverage equipment



















