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Ispring Water Filters

Replacement Water Filters

From: iSpring

The iSpring F25U75 replacement filter set provides 25 individual filters measuring 10" x 2.5" each. This complete kit offers a three-year supply for most reverse osmosis systems.

Each filter features push-fit quick connections for faster installation and replacement. The updated FT15 post-carbon filters connect securely without tools. All filters arrive individually wrapped to maintain freshness.

These filters work with iSpring reverse osmosis UV systems and most other brand RO systems. The 75GPD thin film composite membrane meets NSF/ANSI standards through independent third-party testing. The UV sterilisation lamp kills 99% of bacteria and viruses.


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Product Features

Three Year Supply - This kit contains 25 replacement filters providing three full years of filtration capacity. Each filter lasts approximately 6-12 months depending on water quality and usage. This bulk purchase saves money compared to buying individual filters and ensures you always have replacements available when needed. Push-Fit Quick Connections - The updated FT15 post-carbon filters feature secure push-fit connections that eliminate the need for tools during installation. This design allows faster filter changes and reduces the risk of leaks. The quick-connect system makes maintenance simple for homeowners without plumbing experience. NSF/ANSI Standard Compliance - All filters undergo independent third-party testing to meet NSF/ANSI standards for water treatment equipment. This certification ensures consistent performance and safety. The 75GPD thin film composite membrane effectively removes contaminants whilst maintaining proper flow rates for household use.
Universal Compatibility - These 10" x 2.5" filters fit iSpring reverse osmosis UV systems and most other brand RO systems. The standard sizing ensures compatibility across different manufacturers. This flexibility allows users to upgrade their filtration without replacing the entire system housing. Individual Wrapping - Each filter arrives individually wrapped to preserve freshness and prevent contamination during storage. This packaging maintains filter integrity until installation time. The sealed wrapping also makes it easy to store unused filters without worrying about dust or moisture exposure. UV Sterilisation Integration - The system includes an 11W UV sterilisation lamp that kills 99% of bacteria and viruses remaining after reverse osmosis filtration. This dual-stage approach provides comprehensive water treatment. The UV component adds an extra layer of protection against microbiological contaminants that may survive the filtration process.

FAQs

How often should I replace these filters?

Replace filters every 6-12 months depending on your water quality and daily usage. Homes with heavily chlorinated municipal water or high sediment levels may need more frequent changes. Monitor water taste and flow rate as indicators - when you notice decreased performance or off-tastes, it's time for a new filter.

Are these filters compatible with my existing RO system?

These 10" x 2.5" filters fit most standard reverse osmosis systems including iSpring models and other major brands. Check your current filter housing dimensions to confirm compatibility. The push-fit connections work with standard RO housings, but verify your system uses this connection type rather than threaded fittings.

What contaminants do these filters remove?

The filters primarily reduce chlorine, sediment and improve taste and odour. The 75GPD TFC membrane removes dissolved solids, heavy metals and other contaminants down to 0.0001 microns. Combined with the UV sterilisation, the system addresses both chemical and biological contaminants for comprehensive water treatment.

How do I know when to change the UV lamp?

Replace the 11W UV lamp annually regardless of usage hours. UV lamps lose effectiveness over time even when not in use. Most systems include a lamp life indicator or timer. The lamp may still illuminate but lose germicidal effectiveness, so stick to the annual replacement schedule for optimal protection.

Can I install these filters myself?

Yes, the push-fit quick connections make installation straightforward for most homeowners. Turn off water supply, release pressure, remove old filter and push the new one into place until it clicks. The system includes o-rings and wear parts for maintenance. Refer to your system manual for specific instructions.

What's the difference between these and cheaper alternatives?

These filters meet NSF/ANSI standards through independent testing, ensuring consistent performance and safety. Cheaper alternatives may not undergo the same rigorous testing or use lower-grade materials. The push-fit connections and individual wrapping also add value through easier installation and longer storage life.

How much water pressure do I need for proper operation?

Most RO systems require 40-80 PSI water pressure for optimal performance. Below 40 PSI, you may experience slow water production or poor filtration. Above 80 PSI, consider installing a pressure reducing valve to prevent damage. Check your home's water pressure before installation to ensure compatibility.

What should I do if the filters don't fit my system?

First verify your system uses 10" x 2.5" filters and push-fit connections. If dimensions don't match, you'll need different sized filters. For connection issues, check if your system uses threaded rather than push-fit housings. Contact iSpring customer support with your system model number for compatibility confirmation and alternative solutions.

Ispring Water Filters Specs

BrandiSpring
Model NumberF25U75
Filter Dimensions10" x 2.5"
Product Dimensions6.4D x 6.4W x 25.4H cm
Item Weight8.14kg
MaterialPolypropylene (PP), Carbon Fiber
ColourWhite
Number of Filters25
Filter Life6-12 months each
Total Supply Duration3 years
Connection TypePush-fit quick connection
Membrane Type75GPD Thin Film Composite (TFC)
UV Lamp Power11W
UV Sterilisation Rate99% bacteria and virus elimination
NSF/ANSI ComplianceYes
Third-party TestingIndependent verification
PackagingIndividually wrapped
Compatible SystemsiSpring RO UV systems and most other brands
Primary BenefitReduces Chlorine
Manufacturer Part NumberF25U75
UPC662425058532
GTIN00662425058532
Unit Count1
Number of Items1
Included ComponentsWater filters, O-rings, Wear parts
External Testing CertificationNo
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