

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.
Desertcart purchases this item on your behalf and handles shipping, customs, and support to Iceland.
💧 Elevate your daily sip with ultra-pure water—because your health deserves the best!
The iSpring CU-A4 is a premium under-sink water filter featuring a 4-stage ultrafiltration system with a 0.01 micron membrane that removes 99.99% of contaminants including chlorine, lead, and arsenic. Its tankless design produces no wastewater and fits compactly under your sink. The system includes a sleek brushed nickel faucet and offers easy Twist On/Off filter replacements lasting 6-12 months. Certified to NSF/ANSI standards, it delivers crisp, clean water without stripping beneficial minerals, perfect for health-conscious professionals seeking convenience and quality.











| ASIN | B009AEJWZG |
| Best Sellers Rank | #41,404 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #125 in Under-Sink Water Filters |
| Brand Name | iSpring |
| Capacity | 8000 Gallons |
| Container Type | Faucet |
| Customer Reviews | 4.4 4.4 out of 5 stars (726) |
| EU Spare Part Availability Duration | 12 Months |
| Global Trade Identification Number | 00662425053063 |
| Included Components | Under sink water filter system, parts and tubings, faucet |
| Installation Type | Under Sink |
| Item Dimensions L x W x H | 27L x 11W x 32H centimeters |
| Item Type Name | 4-Stage High Capacity Premium Under Sink Drinking Water System with 0.1 micron Ultra Filtration membrane |
| Item Weight | 2 Kilograms |
| LowerTemperature Range | 40 Degrees Fahrenheit |
| Manufacturer | iSpring |
| Material Type | Polyvinyl Chloride |
| Model Name | CU-A4 |
| Model Number | CU-A4 |
| Other Special Features of the Product | 4-Stage 0.01 micron ultra-filtration, Remove chlorine, lead, arsenic, odor, metal and more |
| Part Number | CU-A4 |
| Power Source | Corded Electric |
| Purification Method | Mechanical Filtration, Chemical Absorption, Redox, and Ultrafiltration |
| Supported Water TDS Level Maximum (PPM) | 300 |
| UPC | 662425053063 |
| Unit Count | 4 Count |
| Upper Temperature Rating | 100 Degrees Fahrenheit |
A**S
My Experience with the iSpring CU-A4 Under Sink Water Filter I recently installed the iSpring CU-A4 under sink water filter, and I'm genuinely impressed. As someone who's always been a bit skeptical about the true efficacy of home water filtration systems, this unit has completely changed my perspective. First off, the installation was surprisingly straightforward. I'm no plumbing expert, but the clear instructions and well-organized components made the process relatively painless. Within an hour or so, I had fresh, filtered water flowing from my dedicated faucet. And what a difference it makes! The most noticeable improvement is in the taste and smell of the water. Our tap water, while generally safe, often had a slight chlorine odor and a somewhat metallic aftertaste. With the iSpring CU-A4, that's completely gone. The water is crisp, clean, and incredibly refreshing. It's truly a pleasure to drink, and I find myself reaching for water more often throughout the day. Even my coffee and tea taste noticeably better. I also appreciate the compact design of the unit. It fits neatly under my sink without taking up an excessive amount of valuable cabinet space, which is a huge plus in smaller kitchens. The dedicated faucet is sleek and unobtrusive, blending well with my existing fixtures. While I can't scientifically measure the contaminant reduction, the peace of mind knowing that my family is drinking water filtered through a reputable system is invaluable. The four-stage filtration process, including activated carbon and ultrafiltration, gives me confidence that we're significantly reducing chlorine, sediment, and other common impurities. In conclusion, the iSpring CU-A4 under sink water filter is an excellent investment for anyone looking to improve the quality of their drinking water. It's easy to install, produces great-tasting water, and offers genuine peace of mind. Highly recommended!
L**.
Tarde mucho en elegir y me decidí por estos filtros por su fácil instalación , fácil cambio de cartuchos después de 12 meses , y el precio muy recomendables . Debes dejar que fluya por 15 min antes de tomar agua cuando es la primera vez que se use los filtros. La empresa que los hace es de USA y tienen buenas reseñas en ese país eso da mucha tranquilidad ,que vienen de una empresa sólida.
A**O
Volevo liberarmi dalla schiavitù di dover acquistare casse d'acqua, e avevo due scelte per il depuratore: osmosi inversa e ultrafiltrazione. Vivo a Roma e l'acqua qui è buona, nel mio caso non credo abbia senso usare l'osmosi inversa che toglie tutti i sali minerali e poi rimineralizza l'acqua, così dopo un po' di ricerche ho trovato questo articolo. L'ho scelto perché ha ottime recensioni, principalmente all'estero, è perché è certificato NSF 42 e 53, che pochissimi prodotti hanno: rimuove moltissimi micro-inquinanti incluse le micro-plastiche. Il prodotto arriva già pre installato, i filtri sono già avviati al supporto superiore, quindi si devono solo collegare i tubi, non è necessario fissarlo a muro, io l'ho appoggiato alla base del mobile, ma sono forniti anche i tasselli per il fissaggio a muro. Ci ho messo circa 30 minuti a montarlo, però nel mio caso ho preferito comprare anche un rubinetto che avesse sia uscita acqua caldo/fredda, che depurata, non volevo fare un secondo buco sul lavello. La prima volta che ho aperto il rubinetto é venuta fuori un po' di polvere nera, ho cercato online, sembra sia normale, che non sia tossica, comunque le istruzioni del prodotto dicono di far scorrere l'acqua per un po'. I primi 2-3 minuti l'acqua non aveva ancora un buon sapore, così l'ho fatta scorrere per 30 minuti in totale, forse un po' troppi, in ogni caso il risultato è stato ottimo: l'acqua non ha più nessun gusto di cloro e sembra di bere acqua in bottiglia, che è quello che volevo ottenere, quindi consiglio assolutamente l'acquisto! Ho verificato sia pH che TDS dell'acqua depurata e sono quasi identici a quella dell'acqua fredda normale, come dovrebbe essere dato che non rimuove i sali minerali dell'acqua corrente. Ho acquistato anche un gasatore della Soda Stream, così posso anche fare l'acqua leggermente frizzante a mio piacimento.
C**O
I always drink water straight from the tap but a few months back, the water supply to my home tasted chemically weird intermittently. Calling PUB did not solve the issue so turned to a water filter system instead. I got this system because iSpring is a reliable brand among the many systems out there and the replacement filters are readily available online. The provided installation instruction is pretty straightforward, most difficult part is to drill a hole through my granite countertop to fit the faucet. Will need a power drill and a diamond bit for that. Cheaper to get the diamond bit from aliexpress. Did not get any leaks on first run. Flushed over 20 ltrs of water through the system before the water looks clear enough to drink. The filtered water taste like regular tap water but it should get rid of the intermittent chemical taste. The faucet feels solid but it's lever is a bit tight compared to my main sink faucet. I did not use the supplied water leak detector.
P**Y
Seems to work well early days yet
Trustpilot
2 weeks ago
3 weeks ago