The Omnipure K2521 is a 10-inch inline carbon block filter that delivers reliable chlorine reduction and sediment filtration down to 10 microns. Designed for use in RO systems, ice makers, beverage equipment, and under-counter installations, this filter combines compact 2-inch diameter housing with versatile fitting options.
SPECIFICATIONS
Technical Details
| Model | Omnipure K2521 |
| Dimensions | 10" length × 2" diameter |
| Micron Rating | 10 micron |
| Media Type | Carbon block |
| Flow Rate | 0.5 GPM maximum |
| Fitting Options | 1/4" FPT, 1/4" QC, 3/8" QC |
| Service Life | 1 year or 1,500 gallons |
| Max Pressure/Temp | 125 PSI / 100°F |
INSTALLATION & USE
Getting Started
- Shut off water supply and release system pressure before installing the K2521 inline filter
- Connect inlet and outlet using appropriate fittings (1/4" FPT, 1/4" QC, or 3/8" QC) ensuring correct flow direction
- Flush filter for 5 minutes before use to clear carbon fines and activate media
- Replace filter annually or after 1,500 gallons, whichever comes first
COMPATIBILITY
Applications
The Omnipure K2521 carbon block filter works in reverse osmosis systems, refrigerator water lines, ice makers, beverage dispensers, drinking fountains, and under-sink filtration setups. Its 10 micron rating makes it suitable as a post-carbon polish filter or standalone inline solution where chlorine taste and odor reduction is needed alongside basic sediment protection. The compact 2-inch diameter fits installations with limited clearance.
🔧 Pro Tip: Note that 1/4" NPT fittings measure approximately 0.540" in actual diameter, not 0.25". Use the sizing chart above to verify thread compatibility before ordering adapters or installing in tight spaces.
