4th of July SaleEnds Sunday. Limited quantities. No rainchecks.Shop now

Skip to contentGo to Product Search
Main Content

Waterdrop - WD-T4-A Alkaline pH+ Reverse Osmosis Water Filter, extra RTRO Filter - White

Model: WD-T4A-RO
SKU: 12493885

Reviews coming soon

Sold & shipped by
ECOLIFE TECHNOLOGIES INC
Deal ends Jul 7, 2026
$312.98
Save $70
The comparable value is $382.98
or
$25.25/mo.
suggested payments with 12-Month Financing
Show me how
Availability
FREE shipping to
Sold & shipped by
ECOLIFE TECHNOLOGIES INC
4.31(36)

About This Item

NSF/ANSI 372 Certified, 10-Stage, 450GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in required
  • General
    • Brand: Waterdrop
    • Model Number: WD-T4A-RO
    • Product Name: WD-T4-A Alkaline pH+ Reverse Osmosis Water Filter, extra RTRO Filter
    • Color: White
  • Dimensions
    • Product Width: 6.22 inches (The out of box width of the item. Width is measured as the horizontal distance from one side of the item to the other as it would be primarily used or placed.)
    • Product Length: 16.54 inches (The out of box length of the item. Length is measured as the longest dimension of the item.)
  • Material
    • Material: Plastic
  • Features
    • Filter Type: Reverse osmosis
    • Filter Life: 24
    • Removes: Silt, Chlorine, Dissolved metals, Sediment
    • NSF Listed: true (Meets the National Sanitation Foundation's standards for public health protection.)
    • Number of Stages: 10
    • Number of Filters Included: 5
    • Flow Rate: 50 quarts per minute
  • Other
    • UPC: 6922350666788

NSF/ANSI 372 Certified, 10-Stage, 450GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in required

  • 𝐃𝐮𝐚𝐥 𝐖𝐚𝐭𝐞𝐫 𝐅𝐥𝐨𝐰: The WD-T4-A RO system offers two purified water options: a standard RO-purified stream and a mineral-enhanced alkaline stream. Switch between them effortlessly based on your needs — both deliver contaminant-reduced drinking water. Dual LED ensure complete water safety from filtration to faucet. 𝐏𝐥𝐞𝐚𝐬𝐞 𝐧𝐨𝐭𝐞: Faucet installation requires drilling holes in the countertop.
  • 𝟏𝟎-𝐒𝐭𝐚𝐠𝐞 𝐰𝐢𝐭𝐡 𝐑𝐎 𝐌𝐞𝐦𝐛𝐫𝐚𝐧𝐞: This system reduces harmful substances, including PFOA & PFOS, chlorine, heavy metals, rust, colloids and more impurities, through its comprehensive filtration stages. The dedicated mineral-enriched line then infuses beneficial alkaline minerals, delivering healthier, great-tasting water. 𝐍𝐨𝐭𝐞: This system requires an electrical connection for operation.
  • 𝟒𝟓𝟎𝐆𝐏𝐃 𝐅𝐥𝐨𝐰 & 𝟐:𝟏 𝐏𝐮𝐫𝐞 𝐭𝐨 𝐃𝐫𝐚𝐢𝐧: With a 450-gallon-per-day capacity and industry-leading 2:1 water-saving ratio, the WD-T4-A provides fast, on-demand purified water while reducing wastewater by up to 800% compared to traditional RO systems.
  • 𝐒𝐦𝐚𝐫𝐭 𝐅𝐢𝐥𝐭𝐞𝐫 𝐋𝐢𝐟𝐞 𝐑𝐞𝐦𝐢𝐧𝐝𝐞𝐫: You won't miss a filter change with the indicator lights and buzzer alerts. Replacement intervals: CF filter: 6 months; RO membrane: 24 months; CB filter: 12 months; Alkaline mineralizer: 12 months.
  • 𝐓𝐚𝐧𝐤𝐥𝐞𝐬𝐬 𝐃𝐞𝐬𝐢𝐠𝐧: The compact, tank-free system effectively avoids secondary contamination risks associated with water storage tanks, while freeing up 70% more under-sink space than traditional tank-based RO systems.
Sponsored

Reviews

This product doesn't have any reviews yet.

Compare similar products

Waterdrop - WD-T4-A Alkaline pH+ Reverse Osmosis Water Filter, extra RTRO Filter - White
Waterdrop - WD-T4-A Alkaline pH+ Reverse Osmosis Water Filter, extra RTRO Filter - White

NSF/ANSI 372 Certified, 10-Stage, 450GPD Tankless Undersink RO Filtration System, 2:1 Pure to Drain, BPA Free, Plug-in required

Waterdrop - WD-G3-CF Filter, Replacement for WD-G3-W, WD-G3P600 and WD-G3P800-W Reverse Osmosis System, 6-Month Lifetime - White
5.0(1)

Pre-sediment and Carbon Block Filter,Compatible with Waterdrop Reverse Osmosis Water Filtration System (WD-G3, WD-G3P600, WD-G3P800),Model Number: WD-G3-N1CF.Waterdrop Reverse Osmosis Water Filtration System is equipped with three filters. Its multi-level filtration system reduces more impurities and contaminants in water, offering you higher quality water.

Waterdrop - G3P600 Reverse Osmosis System Extra 2 WD-MNR35 Water Filters - White
5.0(1)

The Waterdrop G3P600 is a tankless under sink reverse osmosis system with 8-stage filtration, certified by NSF/ANSI 42, 58, and 372, as well as FCC, EU, and UKCA standards. Tested by SGS, it effectively reduces TDS, PFAS, fluoride, heavy metals, salts, and other contaminants, delivering up to 600 GPD with a 2:1 pure-to-drain ratio. Its smart display faucet provides real-time TDS monitoring and filter life tracking, while the sleek tankless design saves 70% under sink space and allows quick 3-second filter changes without tools. This system requires under-sink electricity and offers fast, stable water flow ideal for daily drinking and cooking.

VEVOR - Gravity-fed Water Filter System, 2.25G 304 Stainless-Steel Countertop Water Filtration System - Silver

This gravity-fed water filter system can improve the taste of the water. Each pair of filters can continuously purify up to 6000 gallons of water. The tank is made from SUS304 food-grade stainless steel, which is sturdy, durable, and resistant to rust. It also features an upgraded seamless design, eliminating weld points to prevent leaks over time. Easy to install and does not require electricity, making it suitable for both indoor and outdoor drinking needs.

Specs

No content
Sponsored

Similar products from outside of Best Buy

sponsored
Ask BlueAI

Finance Options

My Best Buy® Credit Card
Choose a benefit:Or
Buy Now, Pay Later
4 payments starting at $75.74
Lease to own

Apply today with no credit needed and enjoy flexible payment options.