
Omnipure - Q5515-P - 10" x 2.5" Q-Series Twist Off Carbon Block Filter - 1 Micron with Phosphate & Lead Removal
Q5515-P 10" x 2.5" Carbon Block Filter with Phosphate & Lead Removal
Twist-off carbon block filter combining 1 micron filtration, certified lead reduction, and polyphosphate scale inhibition in a single cartridge for under-sink, RO, and beverage equipment applications
Four layers of protection in one compact cartridge
Carbon Block Core
Extruded carbon block at 1 micron rating removes particulate, chlorine taste and odor, and traps cysts like Cryptosporidium and Giardia across the entire 1250 gallon service life
Lead Reduction
Certified lead reduction media integrated into the carbon matrix removes dissolved lead from corrosion-prone plumbing systems without sacrificing flow rate or capacity
Polyphosphate Scale Control
Food-grade polyphosphate slowly releases into filtered water to sequester hardness minerals and prevent scale buildup in appliances, ice makers, and beverage equipment
Twist Tap System
Optional in-head valve automatically shuts off water supply when the cartridge is twisted off, allowing tool-free filter changes without shutting down the system or mopping up spills
Omnipure Q5515-P Technical Details
| Dimensions | 10" length x 2.5" diameter |
| Micron Rating | 1 micron |
| Flow Rate | 0.5 GPM |
| Pressure Rating | 125 PSI maximum |
| Temperature | 100°F maximum |
| Capacity | 1250 gallons |
| Media | Carbon block with polyphosphate |
| Reduces | Chlorine taste/odor, cysts, lead, scale |
| Connection | Requires Q-Series head (sold separately) |
Works with Q-Series heads and multiple applications
The Omnipure Q5515-P is a replacement cartridge for existing Q-Series filter heads with 1/4" quick-connect, 1/4" NPT female, or 3/8" NPT female fittings. Compatible with under-sink drinking water systems, reverse osmosis systems as a pre-filter or post-filter, ice makers, refrigerators, beverage dispensers, water coolers, and drinking fountains. The Twist Tap valve feature requires a Q-Series head designed for twist-off operation.
Filter replacement schedule
Replace cartridge
Swap out the Q5515-P cartridge when capacity is reached or water flow noticeably decreases
Maximum service life
Replace the filter annually even if gallons not reached to maintain lead reduction and microbiological protection
Inspect head and fittings
Check Q-Series head and Twist Tap valve for wear or leaks during each cartridge replacement
Multi-Application
Works in RO systems, under-sink filters, ice makers, and beverage equipment
Tool-Free Changes
Twist Tap valve shuts off water automatically during cartridge replacement
Compact Design
Standard 10" x 2.5" size fits most tight installations and limited spaces
Certified Performance
Omnipure Q-Series quality with tested lead reduction and cyst removal
Q5515-P 10" x 2.5" Carbon Block Filter with Phosphate & Lead Removal
Twist-off carbon block filter combining 1 micron filtration, certified lead reduction, and polyphosphate scale inhibition in a single cartridge for under-sink, RO, and beverage equipment applications
Four layers of protection in one compact cartridge
Carbon Block Core
Extruded carbon block at 1 micron rating removes particulate, chlorine taste and odor, and traps cysts like Cryptosporidium and Giardia across the entire 1250 gallon service life
Lead Reduction
Certified lead reduction media integrated into the carbon matrix removes dissolved lead from corrosion-prone plumbing systems without sacrificing flow rate or capacity
Polyphosphate Scale Control
Food-grade polyphosphate slowly releases into filtered water to sequester hardness minerals and prevent scale buildup in appliances, ice makers, and beverage equipment
Twist Tap System
Optional in-head valve automatically shuts off water supply when the cartridge is twisted off, allowing tool-free filter changes without shutting down the system or mopping up spills
Omnipure Q5515-P Technical Details
| Dimensions | 10" length x 2.5" diameter |
| Micron Rating | 1 micron |
| Flow Rate | 0.5 GPM |
| Pressure Rating | 125 PSI maximum |
| Temperature | 100°F maximum |
| Capacity | 1250 gallons |
| Media | Carbon block with polyphosphate |
| Reduces | Chlorine taste/odor, cysts, lead, scale |
| Connection | Requires Q-Series head (sold separately) |
Works with Q-Series heads and multiple applications
The Omnipure Q5515-P is a replacement cartridge for existing Q-Series filter heads with 1/4" quick-connect, 1/4" NPT female, or 3/8" NPT female fittings. Compatible with under-sink drinking water systems, reverse osmosis systems as a pre-filter or post-filter, ice makers, refrigerators, beverage dispensers, water coolers, and drinking fountains. The Twist Tap valve feature requires a Q-Series head designed for twist-off operation.
Filter replacement schedule
Replace cartridge
Swap out the Q5515-P cartridge when capacity is reached or water flow noticeably decreases
Maximum service life
Replace the filter annually even if gallons not reached to maintain lead reduction and microbiological protection
Inspect head and fittings
Check Q-Series head and Twist Tap valve for wear or leaks during each cartridge replacement
Multi-Application
Works in RO systems, under-sink filters, ice makers, and beverage equipment
Tool-Free Changes
Twist Tap valve shuts off water automatically during cartridge replacement
Compact Design
Standard 10" x 2.5" size fits most tight installations and limited spaces
Certified Performance
Omnipure Q-Series quality with tested lead reduction and cyst removal
Original: $38.14
-65%$38.14
$13.35Description
Q5515-P 10" x 2.5" Carbon Block Filter with Phosphate & Lead Removal
Twist-off carbon block filter combining 1 micron filtration, certified lead reduction, and polyphosphate scale inhibition in a single cartridge for under-sink, RO, and beverage equipment applications
Four layers of protection in one compact cartridge
Carbon Block Core
Extruded carbon block at 1 micron rating removes particulate, chlorine taste and odor, and traps cysts like Cryptosporidium and Giardia across the entire 1250 gallon service life
Lead Reduction
Certified lead reduction media integrated into the carbon matrix removes dissolved lead from corrosion-prone plumbing systems without sacrificing flow rate or capacity
Polyphosphate Scale Control
Food-grade polyphosphate slowly releases into filtered water to sequester hardness minerals and prevent scale buildup in appliances, ice makers, and beverage equipment
Twist Tap System
Optional in-head valve automatically shuts off water supply when the cartridge is twisted off, allowing tool-free filter changes without shutting down the system or mopping up spills
Omnipure Q5515-P Technical Details
| Dimensions | 10" length x 2.5" diameter |
| Micron Rating | 1 micron |
| Flow Rate | 0.5 GPM |
| Pressure Rating | 125 PSI maximum |
| Temperature | 100°F maximum |
| Capacity | 1250 gallons |
| Media | Carbon block with polyphosphate |
| Reduces | Chlorine taste/odor, cysts, lead, scale |
| Connection | Requires Q-Series head (sold separately) |
Works with Q-Series heads and multiple applications
The Omnipure Q5515-P is a replacement cartridge for existing Q-Series filter heads with 1/4" quick-connect, 1/4" NPT female, or 3/8" NPT female fittings. Compatible with under-sink drinking water systems, reverse osmosis systems as a pre-filter or post-filter, ice makers, refrigerators, beverage dispensers, water coolers, and drinking fountains. The Twist Tap valve feature requires a Q-Series head designed for twist-off operation.
Filter replacement schedule
Replace cartridge
Swap out the Q5515-P cartridge when capacity is reached or water flow noticeably decreases
Maximum service life
Replace the filter annually even if gallons not reached to maintain lead reduction and microbiological protection
Inspect head and fittings
Check Q-Series head and Twist Tap valve for wear or leaks during each cartridge replacement
Multi-Application
Works in RO systems, under-sink filters, ice makers, and beverage equipment
Tool-Free Changes
Twist Tap valve shuts off water automatically during cartridge replacement
Compact Design
Standard 10" x 2.5" size fits most tight installations and limited spaces
Certified Performance
Omnipure Q-Series quality with tested lead reduction and cyst removal



















