iSpring F4AK 6-Month Prefilter and Alkaline Replacement Supply Filter Cartridge Pack Set for 5 and 6-Stage Standard Reverse Osmosis RO Systems
iSpring F4AK 6-Month Prefilter and Alkaline Replacement Supply Filter Cartridge Pack Set for 5 and 6-Stage Standard Reverse Osmosis RO Systems
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30-Day Hassle-Free Returns
30-Day Hassle-Free Returns
Not satisfied? Return your order within 30 days for a full refund or exchange — simple and easy.
✔ Easy return process
✔ Fast refunds
✔ No hidden conditions
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Fast U.S. Shipping
We ship within the United States only — no international delays.
✔ Processing time: 1–2 business days
✔ Delivery time: 3–7 business days
✔ Real-time tracking available
👉 Track your order anytime from the header via Track Order
About This
- Tested by independent third-party to meet NSF/ANSI standard, replacement filters for standard 6-stage reverse osmosis systems.
- Standard sized 10" x 2.5" Prefilters. 1/4" quick connect fittings on the Alkaline filter.
- Fits iSpring RCC7AK, RCC7P-AK, and most other RO systems that use standard sized filter housings.
- Includes 1x FP15 sediment filter, 1x FG15 GAC filter, 1x CTO carbon filter, and 1x FA15 alkaline filter
- Individually wrapped filter replacement cartridge pack.
Overview
- Material : Carbon Fiber
- Product Dimensions : 4"D x 11"W x 10"H
- External Testing Certification : ANSI
- Product Benefits : Improves water taste and meets NSF/ANSI standards for reducing various contaminants in water
- Brand : iSpring
Experience the difference clean, softened water makes in your daily life — from healthier skin to better tasting drinking water.
👉 Softer skin and smoother hair with every shower.
👉 Prevent scale buildup and keep your appliances running efficiently.
👉 Softer, brighter clothes that last longer with every wash.
See the Difference in Your Water — Instantly
Hard water, chlorine, and hidden contaminants can affect your health, skin, and appliances.
Our advanced filtration system removes impurities and delivers clean, safe water throughout your entire home.
Feel the difference in every drop — from your kitchen to your shower.
FAQ
Water Filtration & Home Water Guide
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Reverse Osmosis vs Water Filter — Which Is Better?
Not sure if you need Reverse Osmosis or a standard water filter? Learn the real differences, what each system removes, and how to choose the best option for your home.
Reverse Osmosis vs Water Filter — Which Is Better?
Not sure if you need Reverse Osmosis or a standard water filter? Learn the real differences, what each system removes, and how to choose the best option for your home.
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Do I Really Need a Water Filter at Home?
Wondering if your home needs a water filter? Learn how to check your water quality, compare filter types, and choose the right system for safer, better-tasting water.
Do I Really Need a Water Filter at Home?
Wondering if your home needs a water filter? Learn how to check your water quality, compare filter types, and choose the right system for safer, better-tasting water.
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7 Signs You Have Hard Water in Your Home
Water quality plays an important role in everyday life. From drinking water to showering and washing dishes, the type of water flowing through your home affects comfort, cleanliness, and even...
7 Signs You Have Hard Water in Your Home
Water quality plays an important role in everyday life. From drinking water to showering and washing dishes, the type of water flowing through your home affects comfort, cleanliness, and even...
