iSpring F3 Water Filter Set for Under Sink Water Filter System RCC7AK/US31

I’m very happy with this iSpring filter set. Installation was easy, and the filters fit perfectly in my standard reverse osmosis system. I like that the set includes a sediment filter and two carbon filters, making it a convenient and complete option for regular RO system maintenance. The filters feel well made, and after installing them, the water has a clean and pleasant taste. It’s also very convenient to get all three replacement filters in one package. So far, I’m very satisfied with my purchase and feel good quality for the price.

Tired of hauling refilled 5 gallon water this is a must have. The taste is soooooooo good coming from someone that hates drinking water. Game changer for me. Now I drink water.

I’ve been using iSpring reverse osmosis refill filters since 2018, and I couldn’t be happier with both the product quality and the customer service. The filters are consistently reliable, easy to replace, and maintain excellent water clarity and taste. I’ve noticed a significant difference in the quality of our drinking water over the years, and that consistency is exactly why I continue to reorder from iSpring. What truly sets this company apart, though, is their customer support — especially Nick. He has been incredibly helpful every time I’ve had questions about compatibility, replacement timing, or ordering the correct filters. He responds promptly, explains everything clearly, and genuinely cares about making sure customers are taken care of. It’s rare to find that level of ongoing support years after the initial purchase. If you’re looking for dependable reverse osmosis filters backed by outstanding service, I highly recommend iSpring — and if you get the chance to work with Nick, you’ll be in great hands.

I rarely write reviews, but this company is ridiculously awesome! I purchased a year ago and just called for info on reordering more filters and spoke with Nick again. Always so helpful!!! And the filter system, wow. I have experience installing these things, but it was truly a breeze and the water quality is next level. Great company, great customer service.

Works great

I chose this type of filters because of their affordability, and still have high quality results. This set would last me more than a year because I will change the 1st (sediment) cartridge regularly. Great value.

I just installed these in my RO system and they fit perfectly. Easy to install, the water comes out crisp and clean tasting. No odor to the filters or the water. Great to have fresh clean water again.

Before doing the 6-month filter change, I called iSpring Support to express concerns about one of the pre-filter housings that had leaked during the original installation and not been properly corrected by our plumber. I spoke with Nick who was super helpful and let me know they can send replacement housing parts because we're still under warranty. It's so reassuring to be able to speak with someone on the phone, explain the situation, and ask questions directly. Nick fully understood what's going on and was quick to put me at ease. Highly recommend iSpring!

جودة عالية وممتازة لها الآن 8 أشهر.

Ho acquistato questo set di cartucce iSpring F3 per il mio impianto a 3 stadi e sono rimasto davvero soddisfatto. Il kit arriva completo di tutte le cartucce necessarie per 6 mesi di filtrazione: ✔️ Filtro a sedimenti da 5 micron per rimuovere sabbia, polvere e impurità ✔️ Filtro a carbone GAC contro odori, cloro e sapori sgradevoli ✔️ Filtro CTO a carbone compattato per migliorare ulteriormente il gusto dell’acqua Installazione semplicissima, basta svitare i bicchieri dei filtri e sostituirli. Tutto perfettamente compatibile con i sistemi standard da 10” (nel mio caso un impianto iSpring, ma vanno bene anche su altri modelli). Le istruzioni sono chiare, anche chi non è esperto riesce senza problemi. Dopo il cambio si nota subito la differenza: ✅ L’acqua ha un sapore molto più pulito e fresco ✅ Spariti i cattivi odori ✅ Si vede la trasparenza dell’acqua migliorata ✅ Nessuna perdita o problema di compatibilità Inoltre, rispetto ad altri filtri economici provati in passato, questi sono costruiti con materiali di qualità, si sente la differenza nella durata e nell’efficienza della filtrazione. Ottimo rapporto qualità-prezzo, considerando che si tratta di un kit completo per 6 mesi. Non ha senso risparmiare sulla salute o rischiare con filtri scadenti. Consigliato senza dubbi a chi vuole garantire acqua sicura e di buona qualità in casa, risparmiando rispetto all’acquisto dei filtri singoli. Lo ricomprerò sicuramente per il prossimo cambio!

Fantástico y súper fácil de instalar mui buen producto el agua sabe mucho mejor vivo en Portugal en teoría se puede beber agua del grifo pero huele mucho a cloro y este filtro mejora mucho

Produit conforme et parfait.

Arrived quickly, installation was easy. It is said to remove chloramine, which not all filter system do. Our city uses chloramine instead of chlorine and you cannot easily remove it. Water definitely tastes better, and we do not smell chlorine.