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Water Dispensers & Filtration

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Water Filtration Systems

Water Filtration Systems

(433)

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Hydrofast - C100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Cold & Room Temp, 3:1 Pure to Drain, BPA Free - Gray
Rating 4.4 out of 5 stars with 8 reviews
Tech Fest Deal
$279.99
Save $120
The comparable value is $399.99
Delivery as soon as Tue, Mar 31 • FREE
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Compare
Waterdrop - WD-G3-CF Filter, Replacement for WD-G3-W, WD-G3P600 and WD-G3P800-W Reverse Osmosis System, 6-Month Lifetime - White
Syndicated rating, 4.9439254 out of 5 stars with 107 reviews on Waterdrop.
(107 reviews from Waterdrop)
$29.99
Get it by Mon, Mar 30 • FREE
Compare
Compare
Sponsored
Hydrofast - C100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Cold & Room Temp, 3:1 Pure to Drain, BPA Free - Gray
Rating 4.4 out of 5 stars with 8 reviews
Tech Fest Deal
$279.99
Save $120
The comparable value is $399.99
Delivery as soon as Tue, Mar 31 • FREE
Compare
Compare

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1-18 of 433 items

12 3...25

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Pickup · Ready todaySelect Store

Shipping · Get it today55423

Brand

AquaTru

Hydrofast

Waterdrop

VEVOR

Costway

Ivation

Empava

Hamilton Beach

Filter Type

Sediment

Carbon

Reverse osmosis

Chemical

Lead

Particle

UV

Acid

Price

to

Less than $25

$25 - $49.99

$50 - $74.99

$75 - $99.99

$100 - $149.99

$150 - $199.99

$200 - $249.99

$250 - $499.99

Features

Filter Indicator Light(s)

Carry Handle(s)

No Assembly Required

Current Deals

Tech Fest Deal

On Sale

Clearance

Color

White

Black

Blue

Silver

Multi

Gray

Clear

Gold

Discount

All Discounted Items

20% Off or More

30% Off or More

40% Off or More

Material

Plastic

Stainless steel

Acrylonitrile Butadiene Styrene (ABS)

Polypropylene

‎Reverse Osmosis Membrane, Carbon Block, PP Cotton

ABS,PE

ABS-600 GPD RO

ABS-800 GPD RO

Customer Rating

Top-Rated

5

4 & Up

Mount Style

Under the sink

Faucet mount

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In-store pricing may vary. Prices and offers are subject to change. © 2026 Best Buy. All rights reserved. BEST BUY, the BEST BUY logo, the tag design, and MY BEST BUY are trademarks of Best Buy and its affiliated companies.

Featured products

Sponsored

Waterdrop - WD-A2 Countertop Reverse Osmosis System - Black
Syndicated rating, 4.6666665 out of 5 stars with 12 reviews on Waterdrop.
(12)
Hydrofast - B100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Room Temp, 3:1 Pure to Drain, UV Sterilization - White
Rating 4 out of 5 stars with 10 reviews
Hydrofast - C100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Cold & Room Temp, 3:1 Pure to Drain, BPA Free - Gray
Rating 4.4 out of 5 stars with 8 reviews
Waterdrop - K6 Reverse Osmosis System Extra WD-ALK16 Water Filter - White
Syndicated rating, 5 out of 5 stars with 19 reviews on Waterdrop.
(19)
Waterdrop - G3P800 Reverse Osmosis System Extra WD-G3-N1CF Water Filter - White
Syndicated rating, 4.910891 out of 5 stars with 101 reviews on Waterdrop.
(101)
Waterdrop - G3P800 Reverse Osmosis System Extra G3-N3CB Water Filter - White
Syndicated rating, 4.910891 out of 5 stars with 101 reviews on Waterdrop.
(101)
Waterdrop - A2 Countertop RO System Extra WD-A2RF Water Filter - Black
Rating 4 out of 5 stars with 1 reviewfalse
Waterdrop - G3P800 Reverse Osmosis System Extra WD-MNR35 Water Filter - White
Syndicated rating, 4.910891 out of 5 stars with 101 reviews on Waterdrop.
(101)
Waterdrop - K6 Reverse Osmosis System Extra WD-KJF Water Filter - White
Syndicated rating, 5 out of 5 stars with 19 reviews on Waterdrop.
(19)
Waterdrop - G3P800 Reverse Osmosis System Extra WD-AP431-3 Scale inhibition filter - White
Syndicated rating, 4.910891 out of 5 stars with 101 reviews on Waterdrop.
(101)

Hydrofast
MXA - 4L
pH+
MIN
100ml
250ml
450ml
600ml
Flush
Reset

Sponsored

Hydrofast - B100 Countertop Reverse Osmosis Water Filter System, 6 Stage Filtration, Room Temp, 3:1 Pure to Drain, UV Sterilization - White

Rating 4 out of 5 stars with 10 reviews

4.0(10 reviews)

Tech Fest Deal

$189.99$189.99

Save $110

The comparable value is Comp. Value: $299.99

Get it by Tue, Mar 31 • FREE

Compare

Compare

Tech Fest Deal

$189.99$189.99

$786.99$786.99

The price was $1,026.99

Tech Fest Deal

$279.99$279.99

$499.00$499.00

$786.99$786.99

The price was $876.99

$606.99$606.99

The price was $846.99

$466.99$466.99

The price was $476.99

$805.59$805.59

The price was $1,050.99

$786.99$786.99

The price was $1,026.99

$676.99$676.99

The price was $716.99