Refurbished Water Filtration & Softeners — 411 Deals

411 open-box and refurbished Water Filtration & Softeners deals are live for shoppers in the US right now, with discounts averaging 27% off retail. Prices range from $6 to $955, and every listing shows the seller's condition grade, current price, savings versus list price and stock status — so you can compare before you buy. Top brands on sale include PUREPLUS, Pentek, ICEPURE and Brio. Inventory syncs from Amazon and other partner stores throughout the day; open-box stock is usually one-of-a-kind, so the best deals sell out fast.

411 live US listings.

USA

3M TFS450 Reverse Osmosis Water Filtration System

$954⁶²

Brio 3-Stage Instant Hot Water Undersink Dispenser System with Dual Flow Faucet in Brushed Gold, Dispenses Hot & Room, NSF/ANSI 42, 53, 61 & 372, Filters Included

$424⁰¹

Brio 3-Stage Digital Instant Hot Water Undersink Dispenser System with Dual Flow Faucet in Rose Gold, Dispenses Hot & Room, NSF/ANSI 42, 53, 61 & 372, Filters Included

$530⁴⁵

Brio 3-Stage Instant Hot Water Undersink Dispenser System with Dual Flow Faucet in Chrome Plated, Dispenses Hot & Room, NSF/ANSI 42, 53, 61 & 372, Filters Included

$517⁴⁹

Waterdrop X12-WCS RO Water Filter, NSF/ANSI 42&58&372 Certified, 1200 GPD Undersink Reverse Osmosis System, 10-Stage Filtration, 3:1 Pure to Drain, Smart Faucet, BPA Free, [ NO Minerals Added ]

$610²⁵

Delta Faucet Clarifi Under Sink Reverse Osmosis Water Filter System, 6-Stage RO Water Filter, Tankless Water Filtration System, Undersink Water Filter, Reverse Osmosis Filter System, DWQ1001012

$440²⁶

Kind Water 6-Stage Reverse Osmosis Drinking Water System with (Brushed Nickel Faucet (Brushed Nickel)

$120⁰⁷

Aquaboon 3-Stage Whole House Water Filter System with 5 Micron 20x4.5 Anti-Scale Reducing Sediment, KDF Heavy Metals and Carbon Chlorine Reduction Water Filter Purification, Wrench, Bracket

$350¹⁸

Waterdrop X8-PRO Dual Flow Reverse Osmosis Water Filter, 800 GPD Tankless RO System, 9-Stage Filtration, Undersink, LED Faucet, BPA Free, Attaches to Your Existing Kitchen Faucet, NO Minerals Added

$498¹⁸

3M (3MWA9) Tfs Membrane

$394⁹⁶

iSpring RCD100HCG Hot & Cold Reverse Osmosis System Countertop, Alkaline RO Water Filter Dispenser, 9 Temperature & 6 Dispensing Volume Options, TDS & Filter Lifespan Monitor, Plug and Play

$410⁵⁷

Everpure EV9612-32 i4000 2 Filter Cartridge (Pack of 4)

$332⁵⁹

Pentair OMNIFilter PB55-20 Big Blue 20" x 4.5" Carbon Block Water Filter

$62⁵⁸

Max Water Brackish Water RO Membrane Element-BW-4040 2400 GPD, Commercial Reverse Osmosis size 4" x 40" good for Industrial, Municipal, Waste Water Re-Use, Car Wash, Whole House etc. (Pack of 4)

$314²⁹

iSpring WCSTB45KG Whole House Water Softener System, 45,000 Grains High Capacity Water Softener Removes Hard Water and Scale, Automatic Backwash and Regeneration, for Whole House & Commercial Use

$582⁹¹

Brio SIMPL W2 Countertop Water Dispenser w/Refillable 2.5L Water Tank, 2-in-1 Sediment & Carbon Filter Included, Room Temp., LED Display w/Touch Buttons, No Plumbing Necessary, White

$84²¹

ICEPURE 4.5" x 20" Whole House CTO Carbon Water Filter, Activated Carbon Block, KDF Cartridge and Activated Carbon Lead Remove Filter Replacement Set for 3-Stage Water Filter System, Pack of 1

$54⁷²

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

$235⁸²

PUREPLUS 4.5"x20" 3-Stage Whole House Water Filter Cartridges, Sediment, Granular Activated Carbon, and Activated Carbon Block, Replacement for F3WGB32BM, AP810-2, GAC-20BB, FG25B-KS, EPM-20BB, FC25B

$36⁵⁸

Aquasana Under Sink Water Filter | 3-Stage Max Flow Filtration | Reduces up to 99.99% of 78 Contaminants - PFAS, Lead, Chlorine, Cysts, & More | Under Counter Drinking Water Filter | AQ-6300M-NF

$100⁶⁹

MIZUDO Tankless Reverse Osmosis Water Filter, 1000GPD RO System, Smart WiFi

$801⁸⁹

Frizzlife Reverse Osmosis Water Filter - Alkaline Mineral pH+, NSF/ASNI 58&53&42&372 Standard, 600GPD Tankless RO Reverse Osmosis System, Under Sink, 2:1 Pure to Drain, Smart LED Faucet, PD600-N

$376¹⁹

Waterdrop G5P700A-Pro Alkaline Mineral pH+ Reverse Osmosis Water Filter, NSF/ANSI 58 & 372 Certified, 8 Stage Dual Flow Reverse Osmosis System, 700 GPD RO Water Filtration System, LED Faucet

$328³³

Brio RFROCLCTPOU20 RO Membrane Filter Replacement for Brio Q20 Series 3 Stage Reverse Osmosis Countertop Water Dispenser Model: CLCTPOU20VURO3 | NSF Certified

$58⁷⁵

Water Filtration & Softeners open-box FAQ

How much can I save on open-box Water Filtration & Softeners?

Discounts on Water Filtration & Softeners at OpenBoxFox currently average 27% off retail across 411 live listings, with prices from $6 to $955. Savings are measured against the manufacturer's list price.

Are open-box and refurbished Water Filtration & Softeners safe to buy?

Yes — every listing shows the seller's condition grade (from open-box "Like New" to certified refurbished) before you buy. You purchase directly from the seller, such as Amazon, and that seller's standard return policy applies to your order.

Which Water Filtration & Softeners brands are on sale open-box right now?

The most-listed brands in Water Filtration & Softeners at the moment are PUREPLUS, Pentek, ICEPURE, Brio and IPW Industries Inc. New open-box inventory arrives daily, so brand availability changes often.

How often are Water Filtration & Softeners deals updated?

OpenBoxFox syncs Water Filtration & Softeners inventory from partner stores throughout the day. Sold-out listings are removed automatically and new deals appear shortly after we find them.

Shop more: Refurbished Tools & Home Improvement · Refurbished Kitchen & Bath Fixtures