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Deal.ai › Keystone › Dehumidifiers
Keystone
Keystone 50-Pint 6.35 Quart Dehumidifier

Keystone 50-Pint 6.35 Quart Dehumidifier

Best price now

$299.00at The Home DepotChecked 3 h ago

Compared across 6 stores. Prices are checked against each store and labelled with when. Store links may earn us a commission. Price via Klarna.

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Price facts

  • Lowest price today: $299.00 at The Home Depot (checked Nov 10, 2026).
  • Checked at 6 stores.

Our take on the Keystone 50-Pint 6.35 Quart Dehumidifier

The Keystone 50-Pint Dehumidifier is a compressor-based unit built for damp basements and crawl spaces, rated for rooms up to about 4,500 square feet. It pulls roughly 50 pints of moisture a day and collects it in a 1.8-gallon tank with a display and front controls. A continuous-drain option and auto-restart after power loss are the features that matter most in a basement. Against Frigidaire and hOmeLabs units in the same class, it is a plain, functional machine rather than a quiet or smart one: 55 dB is loud enough to notice in a living space, and the tank needs emptying often in very wet air.

Best forDamp basements and crawl spacesWhole-floor moisture control in humid climatesOwners who want simple dial-and-display controlsSet-and-forget use with a floor drain
Pros
  • Handles large spaces, rated to about 4,500 sq ft
  • 50-pint capacity suits wet basements
  • Continuous-drain hookup for unattended running
  • Auto-restart returns to settings after a power cut
  • Simple front display and controls
Cons
  • 55 dB is loud for rooms you sit in
  • 1.8-gallon tank fills quickly in very humid air
  • Compressor design works poorly in cold spaces below about 41°F
  • No Wi-Fi or app control
  • Heavy to move up and down stairs

Keystone 50-Pint 6.35 Quart Dehumidifier prices at every store

  • The Home DepotNew

    In stock

    $299.00Free shippingChecked 3 h ago
    Visit The Home Depot
  • Lowe'sNew

    In stock

    $299.00Free shippingChecked 3 h ago
    Visit Lowe's
  • Best BuyNew

    In stock

    $299.99Free shippingChecked 3 h ago
    Visit Best Buy
  • StaplesNew

    In stock

    $299.99Free shippingChecked 3 h ago
    Visit Staples
  • Ace HardwareNew

    In stock

    $329.99Free shippingChecked 3 h ago
    Visit Ace Hardware
  • Tractor Supply CoNew

    In stock

    $364.99Free shippingChecked 3 h ago
    Visit Tractor Supply Co

Store links may earn us a commission. Some prices via Klarna.

Keystone 50-Pint 6.35 Quart Dehumidifier price history

$299.00$299.00
Nov 9Nov 10

Lowest price we've seen: $299.00 on Nov 9 at Lowe's. Tracked across 6 stores since Nov 9.

What reviewers say

Owner feedback on this class of Keystone dehumidifier is mixed. People credit it with drying out basements and holding up over a few seasons, but the noise and the small tank draw the most complaints.

What people mention
  • NoiseCriticisedOwners say the compressor and fan are loud enough to hear through a floor.
  • Tank sizeCriticisedThe 1.8-gallon bucket fills quickly in very humid air, so many switch to a hose.
  • Drying powerPraisedReviewers report damp basements and musty odors clearing within days of running it.
  • DurabilityMixedSome owners get several seasons of use; others report it quitting within a year.
  • SetupPraisedBuyers describe unboxing, drain hookup and dial setting as quick and easy.

Specifications

Color
White, MulticolorSource
Noise Level (max) (dB)
55Source
Functions
DehumidifierSource
Features
DisplaySource

Questions and answers

How much moisture does it remove?
It is rated at 50 pints per day under standard test conditions, which suits a wet basement. Real-world output drops in cooler air.
Can it drain continuously?
Yes. A hose connection lets it drain to a floor drain or sump, so you don't empty the tank. The drain hose is usually not included.
How loud is it?
The rated maximum is 55 dB, roughly the level of a normal conversation. Expect to hear it from an adjacent room.
Will it work in a cold garage?
Not well. Like most compressor dehumidifiers, it loses efficiency below about 41°F and can frost up. A desiccant unit is better for cold spaces.
What size space does it cover?
It is rated for up to about 4,500 square feet, though a damp, closed basement is the realistic use case rather than an open floor plan.
Does it restart after a power outage?
Yes, it resumes on its previous settings once power returns, which matters for unattended basement use.
Where is the Keystone 50-Pint 6.35 Quart Dehumidifier cheapest?
At The Home Depot, for $299.00, as of our latest check.
Where can I buy the Keystone 50-Pint 6.35 Quart Dehumidifier?
6 stores we checked sell it, including The Home Depot, Lowe's, Best Buy, Staples, Ace Hardware.

Stores we've priced the Keystone 50-Pint 6.35 Quart Dehumidifier at

  • Ace Hardware deals and prices
  • Best Buy deals and prices
  • Home Depot deals and prices
  • Lowe's deals and prices
  • staples.com deals and prices

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Operating Area (sq. ft) (sqft)
4500.0Source
Water Tank Capacity (gal)
1.8Source