Check the listing for details. 4-Pack CTO Carbon Block Water Filter 10"x2.5" Replacement for Whole House RO 5μm. Color: Gray, Condition: New. Listed at 24.99 USD. **HIGH QUALITY MATERIALS: Membrane Solutions activated carbon filter is made of high quality coconut shell carbon. Outer layer has food grade plastic net wrapping PP non-woven fabric, which can last up to six months. **FOOD GRADE EFFICIENCY FILTRATION: Designed with 10" x 2.5" slim carbon block filter, filtration rating is 5 micron, filters up to 15,000 gallons, effectively removes 97% sediment, chlorine, organic chemicals and odor, etc. **EASY INSTALLATION: Universal 10 inch Cartridge, fits most standard under-sink RO system, whole house 10" standard filter housing and any 10” water filtration unit. Drop-in designed for easy and quick filter change, no tools required. Features: **HIGH QUALITY MATERIALS: Membrane Solutions activated carbon filter is made of high quality coconut shell carbon. Outer layer has food grade plastic net wrapping PP non-woven fabric, which can last up to six months. **FOOD GRADE EFFICIENCY FILTRATION: Designed with 10" x 2.5" slim carbon block filter, filtration rating is 5 micron, filters up to 15,000 gallons, effectively removes 97% sediment, chlorine, organic chemicals and odor, etc. **EASY INSTALLATION: Universal 10 inch Cartridge, fits most standard under-sink RO system, whole house 10" standard filter housing and any 10” water filtration unit. Drop-in designed for easy and quick filter change, no tools required. **100% SAFE: Our replacement water filter cartridge is verified by independent laboratory tests, compliance with NSF 42 certification standards to ensure your safe. Durable and sealed end caps with sealed silicon O-ring prevent leak. Provide quite clean and fresh water for your family. **EXCELLENT CUSTOMER SERVICE: We provide one year warranty and 30 days money back, lifetime friendly customer service, if you have any questions, do not hesitate to contact us, we will always to stand help you. **3-6 Month Service Lifetime: The filters usually replace TWO or Three times a year, depending on the water quality and the type of water. It's time to replace the filter when the taste of the water is odorous or the water flow is reduced. Recommended for use with melt blown cartridges to extended service life. Compatible Replacement Filters: Compatible for DuPont WFPFC8002, WFPFC9001, SCWH-5, Whirlpool WHCF-WHWC, Pentek CBC-10, GE FXWTC, Culligan D-10A & D-10, Aquaboon CTO, PURELUS CTO, Cornelius COR10B1, COR10B5, Dupont DWC30001, PFC8002, WFDWC30001, WFPFC8002, WFPFC9001, 46942, EcoLab 9320-1002, Everpure CG5-10, DEV9108-15, Flotec TO1, OmniFilter TO1, TO1-DS, TO1-SS, TO1-SS24-01, Sears 34370, Watts F109009,etc. NOTES: **Cartridges may contain a very small amount of carbon fines (very fine black powder). After installation, follow the instructions for flushing the cartridge to remove the fines before using the water. You should flush the tap at least 20 seconds prior to using water for drinking or cooking purposes. This is particularly important if the tap has not been used daily. **This filter needs to be replaced regularly. Otherwise, it will breed bacteria easily and cause secondary pollution of water. **Do not use with water that is micro-biologically unsafe or of unknown quality without adequate disinfection before or after the system. Package Included:4 Pack: 4x 10"x2.5" CTO Carbon Block Filters