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iSpring F5-CUA4 Replacement set, Fits CU-A4 Ultra Filtration 5-Filter Annual Replacement Pack (F5-CUA4)
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane. 2 replacement cartridges included in this pack.
2nd Stage: UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable membrane. 1 replacement membrane included in this pack.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon. Please be noted that this replacement filter pack does NOT include a replacement cartridge for this stage.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, and odor. 2 replacement cartridges included in this pack.
iSpring FP15Q Quick-Change 5 micron Sediment Filter, Fits CU-A4 Ultra Filtration System (FP15Q)
Made of Melt-Blown Polypropylene, 4-layer filtration. This filter can also be used for pool and hottub.
1/4" Quick-Change Fitting
Individually wrapped
Capable to work at low water pressure
iSpring FT15Q Quick-Change Inline Carbon Filter, Fits CU-A4 (FT15Q)
Individually wrapped to keep freshness
1/4" Quick-Change connections
Capable to work at low water pressure
iSpring CU-A4 0.01μm Ultra-Filtration Under Sink Water Filter System, Tankless 4-Stage High Capacity, Remove 99.99% Contaminants, Quick Filter Change with Brushed Nickel Faucet, White (CU-A4)
SUPERIOR PERFORMANCE: The advance 4-stage design, which includes both Ultrafiltration and KDF/GAC stages, removes up to 99% of PFAS, chlorine and chlorine treatment by-products, lead, arsenic, and much more, while retaining minerals. Noted: This system is NOT a Reverse Osmosis water filtration system and does NOT lower TDS.
4-Stage ULTRA FILTRATION SYSTEM: PP Sediment Filter ((5 microns) removes larger particles like rust, sand, dirt. ) Ultra Filtration Filter (contains hollow fiber membrane technology with a pore size of just 0.01 microns. ) KDF and GAC Filter (provides much better control of particularly problematic contaminants including chloramine, hydrogen sulfide, heavy metals, and other compounds). Fine Activated Carbon Filter (provides final polishing).
SIMPLE AND FLEXIBLE: NO WASTE WATER and No storage water tank required. The CU-A4 provides highly effective water filtration for any number of clean water needs - at the sink, in the refrigerator, for coffee makers and more.
FEATURES: Come with premium brushed nickel finish drinking water faucet. All filters, tubing and other water-contacting parts are manufactured to comply strictly with NSF/ANSI standards for safety and water quality.
EASY-TO-INSTALL AND REPLACE FILTER: Push to connect fittings with color-coded tubing simplify the installation process. Filter replacement are designed for ease. No need to disconnect hoses or water lines. Just Twist On / Twist Off filter cartridges make changing filters a snap. Filter life: 6 -12 months, depending on your source water and usage.
iSpring F3-CUA4 replacement set, Fits CU-A4 Ultra Filtration 3-piece Filter Pack for 6-month Supply (F3-CUA4)
Three-piece filter pack including (1) PP sediment filter, (1) KDF+GAC filter, and (1) AC filter. Change every 6 months
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine and odor.
30-Day money back and 1-year satisfaction guarantee. Free lifetime tech support from our Atlanta base
iSpring F4-CUA4 Replacement Pack for 4-Stage Ultra Filtration System CU-A4, Sediment, UF, KDF, and Activated Carbon Filter, 4pcs (F4-CUA4)
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
2nd Stage: UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable membrane.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, and odor.
iSpring FUF1 Ultra Filtration UF Membrane, Fits CU-A4 (FUF1)
UF membrane: 0.1 micron
Unique swivel-valve, push-button assembly allows for DIY replacement installation
Capable to work at low water pressure
Individually wrapped
iSpring FKG15Q Quick-Change Inline KDF/Carbon Filter, Fits CU-A4 Ultra Filtration System (FKG15Q)
Individually wrapped to keep freshness Capable to work at low water pressure 1/4" Quick-Change connections
iSpring F7-CUA4 replacement set, Fits CU-A4 Ultra Filtration 7-piece Filter Pack (F7-CUA4)
1st Stage: 5 Micron sediment filter removes rust, sand, and solid impurities in the water to protect the delicate UF membrane.
2nd Stage: UF Hollow Fiber membrane that uses standard home water pressure to push water through a semi-permeable membrane.
3rd Stage: KDF media (or Kinetic Degradation Fluxion Media) with activated carbon.
4th Stage: Post Activated Carbon Filter. Adopting coconut shell activated carbon with ultra-micron aperture, this carbon filter absorbs residual chlorine, and odor.
iSpring 4-Stage Ultra Filtration Under Sink Water System, 0.01-Micron, Removes 99.99% Contaminants, Quick Filter Change with Brushed Nickel Faucet, w/up to 1-Year Replacement Filter Set (Model: CU-A4) (CU-A4F4)
Advanced 4-Stage Filtration: The iSpring CU-A4 effectively reduces chlorine, lead, heavy metals, VOCs, and harmful contaminants, delivering clean and safe drinking water straight from your tap.
Improved Taste & Odor: Enjoy fresh, crisp water by removing unpleasant taste, chlorine smell, and chemical residues, making it ideal for cooking, beverages, and direct consumption.
Compact & Easy to Install: Designed for under sink use, the CU-A4’s space-saving build fits neatly in kitchens, apartments, or RVs. DIY-friendly installation requires no plumbing experience.
Durable & Reliable Performance: Constructed with high-quality materials, the CU-A4 ensures consistent filtration and dependable long-term use, providing better water at your convenience.
Includes Replacement Filters (F4-CUA4): Bundle comes with a complete filter set for up to 1 year of use, ensuring continuous fresh water without the hassle of frequent reorders.