iSpring US21B-PF 2-Stage Under Sink Water Filter System, No Drilling Required, SGS-Tested to Removes up to 99% PFAS, Reduces Sediment, Chlorine, Taste & Odor, Up to 50,000 Gallons — Open-Box, 24% Off

Name: iSpring US21B-PF 2-Stage Under Sink Water Filter System, No Drilling Required, SGS-Tested to Removes up to 99% PFAS, Reduces Sediment, Chlorine, Taste & Odor, Up to 50,000 Gallons
Brand: iSpring
SKU: awhd-us-b0fxkpmpz5
Price: 262.40 USD
Availability: InStock

Brand: iSpring

Condition: Used - VeryGood

$262⁴⁰

$345⁹⁹

-24% Save $83⁵⁹

Updated: 12 hours ago

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Description

Enhanced Filtration: 7-layer filtration reduces lead, chlorine, heavy metals, bad taste, odor, and more for cleaner, safer water.

PFAS Reduction: SGS-tested second-stage filter removes up to 99% PFAS, delivering healthier water straight from your kitchen tap.

Larger Surface Area: 40% larger filtration surface captures more contaminants, improving water quality for drinking, cooking, and daily use.

Higher Capacity: Filters up to 50,000 gallons without affecting flow rate; lasts up to a year at 1 GPM (EPA regulation).

DIY Installation: Includes 48-inch direct-connect hoses; install easily without drilling, special tools, or creating a mess under the sink.

iSpring Premium Quality: Commercial-grade materials and standard-sized filters ensure reliable performance and durability for years to come.

iSpring Premium Support: US-based team offers expert advice and after-sale support via phone or email for your peace of mind.

Note: Does not reduce Total Dissolved Solids (TDS); retains essential minerals; not recommended for unsoftened water with hardness >500.

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Product Details

SKU:: awhd-us-b0fxkpmpz5
Model:: US21B-PF
Country:: US
ASIN:: B0FXKPMPZ5
UPC:: 810004178113

Shopping Smarter

Common questions about buying open-box and refurbished.

Why buy refurbished or open-box?

Refurbished and open-box products offer the same performance as new at a fraction of the price. You're already saving $84 on this listing. They've been inspected, tested, and are ready to use — the only difference is the price tag. Buying refurbished also reduces electronic waste, extending product life cycles and keeping functional devices out of landfills.

What's the difference between open-box and refurbished?

Open-box products are customer returns that have been inspected and confirmed functional. They may show little to no use — often the item was returned simply because the buyer changed their mind. Refurbished products have been professionally repaired or restored by technicians, tested to meet or exceed manufacturer specifications, and sometimes come with a warranty. Both are a smart alternative to buying new.

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Yes. Products listed on OpenBoxFox come from established retailers like Amazon, Reebelo, and Dyson — not unknown third-party sellers. Each retailer has buyer protection policies, return windows, and in some cases warranties. You get the price advantage of used goods with the purchase security of a known retailer.