Reverse Osmosis Filter Systems

10 items

Reset

Filter & Sort

Sort

top sellers Default Price ▲ Price ▼

FilterReset

Show In Stock Only (8)

Brand

3M (6)
American Plumber (1)
AO Smith (2)
Water Factory Systems (1)

Product Type

Filtration System (5)
Replacement Cartridge (5)

Flow Rate (GPD)

8.28 (1)
15.04 (1)
18.95 (1)
23.92 (2)
36.78 (1)
37.38 (1)

Reduction Claim

Sediment (4)
Chlorine Taste & Odor (CTO) (7)
Arsenic (2)
Barium (3)
Cadmium (2)
Carbofuran (2)
Chromium (Hex) (5)
Chromium (Tri) (5)
Copper (3)
Cryptosporidium parvum Oocysts (1)
Cysts (3)
Fluoride (4)
Giardia Cysts (1)
Lead (5)
Nitrates (1)
o-Dichlorobenzene (2)
p-Dichlorobenzene (2)
Radium 226/228 (3)
Selenium (3)
Total Dissolved Solids (TDS) (3)
Toxaphene (1)
Turbidity (Cloudiness) (2)
Asbestos (2)
Mercury (2)

Price Range

$20 to $25 (1)
$25 to $30 (1)
$30 to $35 (1)
$35 to $40 (1)
$40 to $45 (1)
$100 to $200 (2)
$200 to $300 (1)
$400 to $500 (1)
$1000 to $1500 (1)

Review Score

(3)
(1)

Reverse Osmosis Filter Systems

Reverse Osmosis Filter Systems

View our resources

10 items

Filter

10 items

Filter

list grid

MAP Price

There is a Minimum Advertised Price (MAP) allowed by the manufacturer on this product. Add item to cart for lowest price.

Lead Content Warning

Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). This item is for non-potable (non-human consumption) water applications only.

Lead Content Warning

This product does not comply with the Safe Drinking Water Act, which requires that products used in any system providing water for human consumption (drinking or cooking) to meet low-lead standards. Please check the box below to confirm you are aware that this item is for non-potable water applications only.

This product will NOT be used in the installation or repair of a potable water (human consumption) application.

You must agree to this statement in order to purchase this product.

Cancel Continue

This Item is Non-Returnable

When you order this item, we then special order it for you from the manufacturer. Therefore, our standard return policy does not apply to this item. Manufacturer's warranty still applies.

I understand that once I order this item I cannot cancel or return it.

You must agree to this statement in order to purchase this product.

Cancel Continue

Certification Necessary

FlashShield is to be installed only by a licensed plumber/HVAC installer that has successfully completed the Gastite/FlashShield certification test.

By checking this box I am acknowledging that I have successfully completed the Gastite/FlashShield certification and I hold a valid Gastite/FlashShield certification card.

You must agree to this statement in order to purchase this product.

Cancel Continue

Warning

This product must be installed by a qualified/licensed contractor and set up with properly calibrated combustion test equipment. Failure to comply with this could result in substantial property damage, severe personal injury or death.

By checking this box I am verifying that this product will be installed by a qualified/licensed contractor and will be set up with properly calibrated combustion test equipment.

You must agree to this statement in order to purchase this product.

Cancel Continue

Compare

Add to List

List

WRO-2550, 4-Stage Reverse Osmosis Drinking Water Filtration System 161093 WRO-2550, 4-Stage Reverse Osmosis Drinking Water Filtration System

SKU: 161093 American Plumber

SKU: 161093

Brand: American Plumber

$198.38 each

Add to List

List

9

Thu, Jun 24

9

Qty Arrives

9 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3MRO401 Under Sink Reverse Osmosis Water Filter System 3MRO401-01A 3MRO401 Under Sink Reverse Osmosis Water Filter System

SKU: 3MRO401-01A 3M

SKU: 3MRO401-01A

Brand: 3M

(2)

$474.73 each

Add to List

List

10

Thu, Jun 24

10

Qty Arrives

10 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3MRO501 Under Sink Reverse Osmosis Water Filter System 3MRO501-01 3MRO501 Under Sink Reverse Osmosis Water Filter System

SKU: 3MRO501-01 3M

SKU: 3MRO501-01

Brand: 3M

(1)

$1,060.63 each

Add to List

List

Thu, Jul 22 – Thu, Aug 19

Arrives

Thu, Jul 22 – Thu, Aug 19

Questions? Call 1-888-757-4774 or

Add to List

List
Compare

Add to List

List

AOW-3000 Under Sink Reverse Osmosis Water Filter System (0.8 GPM) AOW-3000 AOW-3000 Under Sink Reverse Osmosis Water Filter System (0.8 GPM)

SKU: AOW-3000 AO Smith

SKU: AOW-3000

Brand: AO Smith

$209.99 each

Add to List

List

Thu, Sep 2 – Fri, Oct 1

Arrives

Thu, Sep 2 – Fri, Oct 1

Questions? Call 1-888-757-4774 or

Add to List

List
Compare

Add to List

List

AOW-3000-R Carbon, Claryum & Membrane Replacement Filter for AOW-3000 (0.8 GPM) AOW-3000-R AOW-3000-R Carbon, Claryum & Membrane Replacement Filter for AOW-3000 (0.8 GPM)

SKU: AOW-3000-R AO Smith

SKU: AOW-3000-R

Brand: AO Smith

$145.58 each

Add to List

List

1

Thu, Jun 24

1

Qty Arrives

1 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3MROP316 SQC Carbon Block Postfilter 47-9298G2 3MROP316 SQC Carbon Block Postfilter

SKU: 47-9298G2 Water Factory Systems

SKU: 47-9298G2

Brand: Water Factory Systems

(1)

$44.54 each

Add to List

List

42

Thu, Jun 24

42

Qty Arrives

42 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3M Sediment/Carbon Prefilter Cartridge for Reverse Osmosis System 47-9290G2 3M Sediment/Carbon Prefilter Cartridge for Reverse Osmosis System

SKU: 47-9290G2 3M

SKU: 47-9290G2

Brand: 3M

$25.99 each

Add to List

List

41

Thu, Jun 24

41

Qty Arrives

41 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3M Sediment Filter for 3MRO401 & 3MRO501 RO Drinking Water Systems 3MROP411-20A 3M Sediment Filter for 3MRO401 & 3MRO501 RO Drinking Water Systems

SKU: 3MROP411-20A 3M

SKU: 3MROP411-20A

Brand: 3M

$23.61 each

Add to List

List

58

Thu, Jun 24

58

Qty Arrives

58 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3MROP412 Replacement Granulated Carbon Water Filter for 3MRO401 & 3MRO501 3MROP412-20A 3MROP412 Replacement Granulated Carbon Water Filter for 3MRO401 & 3MRO501

SKU: 3MROP412-20A 3M

SKU: 3MROP412-20A

Brand: 3M

(1)

$35.71 each

Add to List

List

48

Thu, Jun 24

48

Qty Arrives

48 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List
Compare

Add to List

List

3MROP416 Replacement Carbon Block Post-Water Filter for 3MRO401 & 3MRO501 3MROP416-20A 3MROP416 Replacement Carbon Block Post-Water Filter for 3MRO401 & 3MRO501

SKU: 3MROP416-20A 3M

SKU: 3MROP416-20A

Brand: 3M

$30.15 each

Add to List

List

55

Thu, Jun 24

55

Qty Arrives

55 Thu, Jun 24

Questions? Call 1-888-757-4774

Add to List

List

Qty	Arrives
9	Thu, Jun 24

Qty	Arrives
10	Thu, Jun 24

Arrives
Thu, Jul 22 – Thu, Aug 19

Arrives
Thu, Sep 2 – Fri, Oct 1

Qty	Arrives
1	Thu, Jun 24

Qty	Arrives
42	Thu, Jun 24

Qty	Arrives
41	Thu, Jun 24

Qty	Arrives
58	Thu, Jun 24

Qty	Arrives
48	Thu, Jun 24

Qty	Arrives
55	Thu, Jun 24

Reset Password

Please enter the email address associated with your account and we will send you a link to reset your password.

Please enter a valid email address.

Your password reset link is on its way. If you have problems accessing your account, please contact us at 1-888-757-4774 and we'll help you out.

I'm sorry, your email address was not found in our system.

If you think this is a mistake, please contact Customer Service at 1-888-757-4774 or email us.

FAQs, Manuals & Videos

View Resources

Resources

Articles

More Info

This category contains reverse osmosis under sink water filter systems.

NEED HELP?

888-757-4774

Closed Now: Phone Hours

Monday – Thursday
8am–7:45pm ET
Friday
9am–7:45pm ET

Call

Text

Chat

or check out our Support Center

Select 2 to 3 items to compare
Compare up to 1 more item

Why don't we show the price of this item?

We try to always offer you the lowest prices possible, but some manufacturers require that we only show these low prices once you take further action.

To see the price, simply add the item to your cart or sign in.

Sort

FilterReset

Brand

Product Type

Flow Rate (GPD)

Reduction Claim

Price Range

Review Score

Reverse Osmosis Filter Systems

Resources

Articles

More Info

Why don't we show the price of this item?

Available TurboTrack Time Slots

This item only ships with orders over $200.

We don't sell this unit.