close

Register

You are about to set up an account. For this process, you will be asked to provide personal information about yourself and possibly your organization. We invite you to read our Privacy Policy concerning any use of this information that you provide to us.

Benefits of setting up an Account:
  • Allows personalized content such as Favorite Items to be viewed.
  • Conveniently stores information to be used at checkout, such as billing and shipping addresses (Payment information is never stored on the website).
  • Get customized pricing for your organization (when available).

Join Our Mailing List!

Preferred Email Format

* Required

 
Advanced Search

Osmonics PreSep™ Glass Prefilters with Binder

By GE Osmonics
Osmonics PreSep™ Glass Prefilters with Binder

Prefilters reduce filtering time and replacement of primary filters by trapping large particles before they reach the final membrane. For use in this way, a prefilter of slightly smaller diameter than the final filter is recommended so that the prefilter fits inside the O-ring or filter funnel for a positive seal.

Prefilters can also be used as the main filtration medium where complete retention of contaminants above the nominal pore size is not critical.

Borosilicate glass fibers woven into a porous matrix and bonded by an acrylic resin. PreSep™ prefilters are biologically inert, autoclavable, and resistant to oxidizing agents and weak acids. Not recommended for use above 125°C or with solvents capable of extracting the binder.

Type G15 prefilters have nominal pore size rating of 0.50µm with excellent retention efficiency but limited dirt-handling capability. Use for upstream protection of 0.20 to 0.80µm membranes.

Type G20 prefilters have nominal pore size of 1.0µm, giving greater dirt-holding capacity but with lower retention efficiency than the type G15 filters. Used upstream of G15 in serial filtration stacks.

Type G25 prefilters have approximately the same retention as G20, but because of their greater depth, they have better throughput and dirt-holding capacity. Useful for filtering protein-containing solutions and liquids with heavy contaminant loads. Use upstream of G15 in serial stacks.

Type G15

           
Cat.No. Diam Pore Size PK    
243-1215544 25mm 0.50µm $83.15
100/PK
Add To Favorites
243-1215548 47 0.50µm $115.50
100/PK
Add To Favorites
243-1215550 90 0.50µm $140.13
25/PK
Add To Favorites
243-1215553 142 0.50µm $143.20
25/PK
Add To Favorites

Type G20

           
Cat.No. Diam Pore Size PK    
243-1215559 25 1.0µm $73.93
100/PK
Add To Favorites
243-1215562 47 1.0µm $90.85
100/PK
Add To Favorites
243-1215564 90 1.0µm $70.83
25/PK
Add To Favorites
243-1215567 142 1.0µm $101.63
25/PK
Add To Favorites

Type G25

           
Cat.No. Diam Pore Size PK    
243-1215571 13mm 1.0µm $69.30
100/PK
Add To Favorites
243-1215573 25 1.0µm $70.83
100/PK
Add To Favorites
243-1215577 47 1.0µm $90.85
100/PK
Add To Favorites
243-1215579 90 1.0µm $66.23
25/PK
Add To Favorites
243-1215582 142 1.0µm $120.10
25/PK
Add To Favorites

The following items have been added to your cart:

Choose a favorite list for this item:

Catalog Number Description Price
$

Request Literature

Please fill out the form below if you want to request literature from Krackeler Scientific.

 

Quick Order

* Required


New Year Price Updates

We are currently working diligently to update our website pricing information for the New Year. If you place an order, you will be acknowledged with any corrected pricing. If you'd like the most current information sooner, please don't hesitate to drop us an email or give us a call and we'd be happy to assist. Thank you for your patience while we are updating.

800-334-7725
office@krackeler.com


Play Video

To Request a Quote

  1. Search or Browse for items and add to them to your Shopping Cart.
  2. Click the "Request Quote" button at the bottom of the Shopping Cart page.
  3. Fill out required fields.
  4. Optionally you can convert to standard checkout mode by choosing a payment type.
  5. Click "Request Quote" at the bottom of the page.

You will be contacted with a quote.

To Order From a Quote

  1. Enter a quote number below
  2. Click "Checkout" (a special place holder item will be added to your cart)
  3. Enter any additional instructions in the comments section at checkout.

Customer service will contact you with an order confirmation.

Back to Top