Replacement water filters, RO reverse osmosis membranes and whole house filter systems. Refrigerator water filters, pool and spa filter. Pentek, OMNIFILTER water filters. Chiller Daddy water chillers

Search
Cart ()
Order Tracking
Reorder
Toggle Nav
Home
Replacement Water Filters
Reverse Osmosis Systems
Whole House Water Filters
Refrigerator Water Filters
Water Testing
Pool and Spa Filters
Boat & RV Water Filters
Parts Department
Water Chillers
Installation and Trouble Shooting Guide
Specialty Water Filters
Well Water
Gift Guide
Toggle Nav
Cart ()
Order Tracking
Search
Advanced Search
Menu
Menu
Account

Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filter system repair parts. From one water filter or membrane to case quantity discounts.

LOW PRICES and FAST SHIPPING SINCE 1999 !

99.5% Of All Items In Stock For Same Day Shipping!

DuPure International Water Filters ®

DuPure International Water Filters ®

Simply replace your DuPure ® or Raine Pure Blue ® -60 Threaded Omnipure ® 2 stage water filtration system's -60 threaded head and start using the standard threaded Omnipure ® "Q" series replacement water filters at a lower cost than the -60 thread.

Since both systems use John Guest ® quick connectors it is very easy to install the replacement standard threaded head. Keep your old DuPure or Rayne faucet and feed valve. See information on how easy it is to use ® John Guest quick connectors.

DuPure Pure Blue 3 Stage RO Reverse Osmosis System
DuPure Pure Blue 3 Stage RO ...

DuPure Pure Blue 3 Stage RO Reverse Osmosis System Replacement Water Filters and RO Reverse Osmosis Membranes. Huge replacement water filter inventory.

More
DuPure 1 Stage and 2 Stage Ultra Filter Systems -60
DuPure 1 Stage and 2 Stage ...

DuPure ® and Ultra Filter ® Compatible Replacement Water Filters. HELP Guides. Low prices and fast shipping online since 1999. Millions sold. Quantity discounts.

More
DuPage Reverse Osmosis Water Filters ®
DuPage Reverse Osmosis Water ...

DuPage Compatible Replacement Water Filters And Reverse Osmosis Membranes - DIY HELP Guides. Low prices and fast shipping online since 1999. Quantity discounts. Millions sold.

More

Easy TDS Membrane Performance Calculator
See If It is Time To Replace Your Membrane
Submit

Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS Rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.

See our selection of TDS meters under Water Tests

Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system.   View maintenance and servicing tips online at our Installation & Trouble shooting Guide.

Search


Browse By
Shopping Options
Brand Category
  1. DuPure Pure Blue 3 Stage RO Reverse Osmosis System
  2. DuPure 1 Stage and 2 Stage Ultra Filter Systems -60
  3. DuPage Reverse Osmosis Water Filters ®

SEE OUR ONLINE HELP GUIDE

Compare Products
  1. Remove This Item
Compare
Clear All
You have no items to compare.
My Cart

  1. ​

Filter Change Email Reminder

Filter Change Email Reminder
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.