Shopping Cart Items: 0   Sub-Total : US$0.00
Welcome, Guest ( Login )
Celebrating 32 years providing high quality products and advice.
Our Local Time Is 4:31:20 PM.
Call us at 818-786-0600. We are here to help!
Lab Water System Introducing the Polaris Lab Water Systems
High Purity Water Made In The USA.
Click here for more info.
Laboratory Water Systems Laboratory Process Filters Laboratory Equipment Water Treatment

Best Barnstead D4751 Nanopure water system filters

Date : 4/8/2014
From : Michael


We just purchased a used Barnstead D4751 Nanopure water system and would like to purchase a set of filters. We plan to feed the unit with standard water from the tap.

1) Is filter kit B-CDDO2 the most appropriate selection, or do we need something to serve as a pre-filter since we are using city water?

2) There is a white plastic canister inside the right side housing, where the ultrafiltered water comes out. Is this another filter that we should replace?

3) There is a very small filter on the hand-held spigot. Is this FF0501 that comes with kit B-CDDO2?


Yes that would be the best kit for that system,

It includes :

1 ea. Carbon filter for removal or large molecular wt. organic compounds.

2 ea. Deionizer filters for the removal or dissolved metals.

1 ea. Organic scavenger for the removal of trace low molecular wt. organic compounds.

1 ea. 0.22 micron capsule filter for the small outlet valve. This filter removes bacteria and particulates.

You can find that kit here :

The small filter in the first is a sanitization filter that can be discarded. They are single use.

You can operate the system, on tap water, but it is always better to pretreat it in order to get much large capacity out of the filters. For instance, pretreating the water with reverse osmosis can extend the life of the filters 15X which in turn reduces your cost by as much. Where you may get 100 gallons on tap water feed, you could expect as much as 1500 gallons of reverse osmosis feed. By adding a small deionizer in the Reverse osmosis system or by feeding the system with distilled water, you can get 10's of thousands of gallons out of the same filter set.

Here are some economical Reverse Osmosis systems you can look at :

and some distillers can be found here :

View Q&A list

See Other Technical Articles

APS Scientific Products

Laboratory Water Purification
Quick View

Main Categories

Most Popular

Technical Information

  • Laboratory Water Systems
  • Laboratory Water Filters
  • Laboratory Water Distillers
  • Barnstead Lab Water Systems
  • Hose Barb Filters
  • See All Lab Water Products
  • Filters For Millipore Systems
  • Filters For Barnstead Systems
  • Barnstead Lab Water Systems
  • MicroPure Lab Water Systems
  • Polaris High Flow Water Systems
  • Bottled Lab Water
  • Laboratory Equipment
  • Lab Water Specifications
  • About Lab Water Applications
  • Barnstead Water Manuals
  • Glossary Of Pure Water Terms
  • Basic Lab Water Contaminants
  • Medicine and Research Water
  • See All Articles

  • Laboratory Equipment
    Quick View
    Main Categories Most Popular Technical Information
  • Glassware Washers
  • Chemical/Biological Fume Hoods
  • Freeze Dry Systems
  • Forensic Enclosures
  • ScrubAir Pipette Washer Dryers
  • See All Laboratory Equipment
  • Evidence Drying Cabinets
  • Fingerprint Fuming System
  • Basic Laboratory Hoods
  • Console Freeze Dry Systems
  • Steam Scrubber Glassware Washers

  • Lab Water Specifications
  • See All Articles
  • Open To The Public

    Independent Reps Wanted

    Need Live Help?

    Contact Us

    Short Lead times.
    Lab Water Deionizer

    Lab Water System

    Top Sellers

    Most Popular
    Fume Hoods

    Images are representative of the products. Images may or may not be of the actual product. If it is important e-mail us for an actual image if available.

    * Flat Rate UPS shipping when able to ship via UPS and is in the USA excluding Hawaii and Alaska.
    Larger Items may not be able to ship via UPS, in that case freight charges will be quoted seperately.
    International shipping will be quoted after the order is placed. You will have the opportunity to cancel before we finalize your order.

    Terms and conditions
    Credit Application
    Privacy Policy
    List All Products