F3 RO System Prefilter Set, NSF Certified,10" x 2.5", 6-Month, 3-Pc

These are replacement filters for my iSpring three-stage system, and they do an excellent job. The sediment filter catches particles and debris, while the GAC and carbon block filters remove chlorine, unpleasant smells and improve the taste of the water. Together they leave the water clean, fresh and far more enjoyable to drink. They're easy to install, fit perfectly and work exactly as advertised. The difference is noticeable, especially when it's time to replace them. With what we pay for water these days, you'd think we wouldn't need extra filtration. But every time I change these filters and see what they've removed, I start wondering if the water companies should be using them too.

These are good. I have them installed in my auto water change system. They filter out any crud and declorinate water. I do daily small water changes and these do the job well. They aren't expensive and are easy too replace.

I purchased these as a trial to see if they would fit my AquaFilter home filtration unit. I can confirm they fit perfectly and in saving ££ in the process ;) I have setup a 3 monthly subscription to keep them coming without the need to chase the next deal. Very happy customer :)

In very simple terms these cartridges are an excellent choice. They were an absolutely perfect replacement for my existing set with full fitting included just in case you need it. Will buy again.

Great value

No problems with my first set, no problems with my second set all works well. Glass on the left old filter water, glass on the right new filtered water. Without send ending the water to a laboratory for testing i cant say 100% whats been cleaned out. But the orange specs i think is iorn and the black filter who knows but there is a difference with using filters.

I have a pond and to reduce the heavy metals when topping up I use these in my filtration , does the job good quality and the value for money means I can change my filters more often than recommended , easy to use quick delivery 😀😀😀

Ordered many times now, never had a problem with this product. Good RO system filters replacement. Value for money

جودة عالية وممتازة لها الآن 8 أشهر.

Bon produit

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!

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.

Filtran muy bien aunque tienes que estar pendiente de limpiarlos cada poco ( como todos) . Por el precio van de lujo.