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iSpring US31-PF 3-Stage Under Sink Water Filtration System, SGS-Tested to Reduces up to 99% PFOA & PFOS, 3-Stage Filtration Reduces Sediment, Chlorine, Taste & Odor, 2.5" x 10"

iSpring US31-PF 3-Stage Under Sink Water Filtration System, SGS-Tested to Reduces up to 99% PFOA & PFOS, 3-Stage Filtration Reduces Sediment, Chlorine, Taste & Odor, 2.5" x 10"

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Regular price $239.39
Regular price Sale price $239.39
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  • 24/7 Customer Support
  • Risk-Free 30-Day Returns
  • Fast & Reliable U.S. Shipping

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

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

  • [SGS-Tested PFAS Reduction]: This advanced filter is expertly engineered to target and reduce per- and poly-fluoroalkyl substances (PFAS), a group of persistent and potentially harmful chemicals often present in tap water. Using high-performance carbon block technology, it efficiently captures and filters out PFAS particles, providing you with cleaner, safer water you can trust for daily use.
  • [Superior Water Filtration for Cleanliness]: The iSpring US31-PF features a robust 3-stage filtration system designed to deliver the purest, safest drinking water. It begins with PP sediment filtration to capture large particles, followed by CTO filtration to remove chlorine and some organic chemicals. The final CTO layer effectively removes PFAS, rust, dirt, taste, and odors, providing you with refreshing, crystal-clear water free from contaminants.
  • [Consistent Supply of Pure, Refreshing Water]: The iSpring US31-PF delivers a fast flow rate of up to 1 GPM, outperforming standard under-sink filtration systems. It is ideal for providing clean drinking water, rinsing fruits and vegetables, and satisfying the water needs of your entire household with ease.
  • [Exceptional Quality and Design]: The iSpring US31-PF is crafted with attention to detail and top-tier materials. It showcases a sleek European-style brushed nickel faucet and a clear first-stage housing for easy filter inspection. It undergoes thorough testing to meet NSF/ANSI standards (42, 53, 61) and FDA regulations, ensuring outstanding performance, long-lasting durability, and dependable reliability.
  • [Effortless Installation and Maintenance]: The system is designed for straightforward installation and low maintenance, equipped with an activated carbon fiber filter, CTO filter, and a high-capacity sediment filter. The sediment filter effectively traps particles, helping to prolong the system's lifespan and ensure long-term efficiency. To maintain peak performance, it is recommended to replace the filters every 6 to 12 months, depending on water usage and the quality of the water source.
  • [TDS Retention and Customer Support]: The iSpring US31-PF maintains your water's total dissolved solids (TDS) levels, preserving important minerals. If you're looking to reduce TDS further, we recommend considering an iSpring reverse osmosis system. Backed by a 1-year warranty and lifetime customer support from Atlanta, GA, the iSpring team is always ready to assist with any questions or concerns.

Overview

  • Brand : iSpring
  • Special Feature : Multi Stage Filtration, Portable, Heavy Duty, Leak-Proof
  • Product Dimensions : 13"L x 5.3"W x 14.2"H
  • Material : Combination of materials
  • Capacity : 10000 Gallons
  • Included Components : housings, filters, parts and tubings, faucet and mounting bracket
  • Package Information : Bottle
  • Installation Type : Under Sink
  • Purification Method : Carbon Block, Sedimentation
  • Power Source : Ac
View full details
Is Hard Water or Contaminated WaterDamaging Your Home?
Signs You May Be Experiencing Problems With Your Tap Water
Protect Your Home Appliances
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Softer Skin & Healthier Hair
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Pure, Better-Tasting Drinking Water
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Prevent Costly Hard Water Damage
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Reduce Limescale Buildup
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Clean Water, Whole Home
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Protect Your Home Appliances
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Softer Skin & Healthier Hair
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Pure, Better-Tasting Drinking Water
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Prevent Costly Hard Water Damage
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Reduce Limescale Buildup
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Clean Water, Whole Home
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RO Water Filters Reverse Osmosis Water Filters for Pure Drinking Water
Salt Water Softeners Salt Water Softeners for Powerful Hard Water Treatment
Pure Water. Better Living.

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.

Descaling Solutions Descaling Solutions for Removing Limescale and Mineral Buildup
👉 Enjoy healthier skin and hair with every use.
Water Filter Cleaning Kits

👉 Prevent scale buildup and keep your appliances running efficiently.

Under Sink Water Filters

👉 Softer, brighter clothes that last longer with every wash.

Reverse Osmosis Systems Best Reverse Osmosis Systems for Clean Drinking Water

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.

Impurity Reduction 95%
Chlorine Removal 99%

FAQ

Is installation difficult?
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No. Our systems are designed for easy DIY installation and most homeowners can install them without professional tools. If you need help, our support team is always available.
Do I need a plumber to install the system?
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No plumber is required. The system connects directly to your existing plumbing with simple fittings.
How does this system improve water quality?
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Our filtration system helps reduce common impurities and minerals that cause hard water problems, improving the taste and clarity of your water.
Will this help protect my appliances?
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Yes. Hard water minerals can build up inside appliances. Our system helps reduce scale buildup, helping extend the life of washing machines, dishwashers, and water heaters.
How often do filters need to be replaced?
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Most filters only need replacement every 6–12 months, depending on usage and local water conditions.
Will this improve my skin and hair?
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Many customers notice softer skin and smoother hair after switching to filtered or softened water.
What if I'm not satisfied with the system?
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If you're not completely satisfied, you can return your product within 30 days for a full refund.
Easy to install — no plumber required. Our experts are here if you need help.
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