Waterdrop G5P500A Tankless Reverse Osmosis System, 8-Stage 500 GPD Under Sink RO Water Filter with Alkaline Remineralization, 2:1 Pure to Drain, Smart Faucet

Waterdrop G5P500A Tankless Reverse Osmosis System, 8-Stage 500 GPD Under Sink RO Water Filter with Alkaline Remineralization, 2:1 Pure to Drain, Smart Faucet

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Ships in 1–3 business days  Processing
In-stock orders ship from Toronto within 1–3 business days, Monday to Friday. No shipping on weekends.
Delivery
Ontario 1–5 business days. Rest of Canada 2–7 business days. USA 2–7 business days by express carrier.
Free pickup in Etobicoke, ON.

$450.00  $248.00

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    • Shipped today? Order within: Nov 12, 2026 23:59:00 -0500
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    Condition

    • Condition: Like new
    • Source: Amazon customer return, inspected & graded
    • Included: RO system with 2 pre-installed filters, faucet, power adapter, tubing, fittings, user manual

    Description

    Condition - Like new

    Bottled water is expensive and a tank-style RO unit eats the whole under-sink cabinet. The Waterdrop G5P500A reverse osmosis system is tankless, filters down to 0.0001 μm through 8 stages, adds back calcium and magnesium for an alkaline taste, and fills a glass in seconds at 500 gallons per day. It is an open-box unit, priced well below what it costs new.

    💡 Why You’ll Love It:

    ✅ 8-Stage Filtration: Reduces PFAS, chlorine, lead, fluoride, heavy metals and odours
    ✅ 0.0001 μm RO Membrane: Removes dissolved solids most pitcher filters miss
    ✅ Alkaline Remineralization: Adds Ca, Mg, Na and K back for a cleaner taste
    ✅ 500 GPD Tankless Flow: Fills a 6 oz cup in about 8 seconds, no tank to wait on
    ✅ 2:1 Pure-To-Drain Ratio: Wastes far less water than a conventional RO system
    ✅ Slim Under-Sink Design: Frees up to 70% of cabinet space compared to a tank unit
    ✅ Smart Faucet: Filter-life indicator on the dedicated tap

    📦 Product Details:
    • Brand: Waterdrop
    • Model Number: G5P500A (WD-G5-W4A)
    • Colour: White
    • Capacity: 500 gallons per day
    • Filters: WD-RG15-CFA pre-sediment & carbon block with alkaline, WD-RG15-RO membrane (both pre-installed)
    • Stages: 8
    • Pure To Drain: 2:1
    • Feed Water Pressure: 14.5–87 psi
    • Installation: Under sink, corded electric
    • Faucet: 16.8 x 8.1 x 28.7 cm, requires a countertop hole
    • Included Components: RO system with 2 pre-installed filters, faucet, power adapter, tubing, fittings, user manual
    • Customer Rating: ⭐ 4.6 out of 5 based on 1,290 reviews

    📋 What “Like New” Means Here:
    • Packaging: original box, opened
    • Cosmetics: as shown in the photos — please review them before ordering
    • Accessories: complete — faucet, power adapter, tubing, fittings and manual, as pictured
    • Function: powered on and tested, works as intended

    🧼 Care & Use:
    • Flush the system for 30 minutes after installation before drinking the water
    • Replace the CF filter about every 12 months and the RO membrane about every 24 months
    • Twist filters out from the front — no tools needed
    • Turn off the feed valve and unplug if you leave the house for more than a week

    🔗 Perfect for: Families replacing bottled water, condo kitchens with little cabinet space, and anyone on municipal water who wants better-tasting drinking water.

    🛒 One unit only at this price — once it sells, this listing is gone. Add it to your cart.

    SKU - 3034
    50ˣ50ˣ22 11.4

    Condition

    • Condition: Like new
    • Source: Amazon customer return, inspected & graded
    • Included: RO system with 2 pre-installed filters, faucet, power adapter, tubing, fittings, user manual

    Buy With Confidence

    • Inspected and graded by hand before it is listed — the grade above is what you get
    • Every item is guaranteed 100% functional, whatever its condition grade
    • 30-day returns and free exchanges. If it arrives faulty or not as described, we send a prepaid label and refund or replace it — your choice
    • Free shipping in Ontario over $150 and Canada-wide over $200, or free pickup in Etobicoke, ON
    • Open-box and overstock goods put back into use instead of landfill

    Returns & Delivery

    When will my order be delivered?

    Orders ship from Toronto within 1–3 business days (Monday to Friday). Delivery usually takes 1–5 business days in Ontario and 2–7 business days in the rest of Canada. USA delivery usually takes 2–7 business days; other international destinations usually take 3–14 business days. Delivery times are in addition to order processing and may vary by destination and carrier.

    Can I return my product?

    Orders can be returned or exchanged within 30 days of receiving the parcel, providing they are in original resalable condition.

    What can I do if my item (or part of it) is damaged?

    We work hard to deliver your items without damage. Orders can be returned or exchanged within 30 days of receiving the parcel, providing they are in original resalable condition.

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