Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC and to all U.S. Military APO/FPO/DPO addresses.

Enjoy Our Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Restriction Government Restriction
Questions & Answers

Code: WH-9CL-US203NPUORG

MPN: US203NPUORG

List: $719.99Save 10%
$649.99

Product Info for Whatman Mini-UniPrep Syringeless Filters, Whatman US203NPUORG Filters With Slit Septa Cap, Pack of 100

Whatman Mini-UniPrep Syringeless Filters, Whatman Filters With Slit Septa Cap is a reliable and dependable addition to the Whatman Filters family of products. Combining top-notch and uncompromising quality with an affordable price, the Whatman Mini-UniPrep Syringeless Filters, Whatman Filters With Slit Septa Cap US203NPUORG/ 83009-816 can fulfill your laboratory needs while still offering a great value for the money.image

Product Category Description:

These syringeless filters provide a faster, easier way to remove particulates from samples being prepared for high performance liquid chromatography (HPLC) analysis. Ideal for routine analysis, composite assays, content uniformity, protein precipitation, solubility and dissolution testing, and sample filtration. Filters feature a polypropylene housing and cap. Choose from a variety of filter media to meet your application needs: low nonspecific protein binding PVDF membranes for aqueous solutions; nylon membranes when filtering samples containing aqueous or organic solvents with a pH range of 3–10; PTFE membranes for chemically agressive samples; PES membranes for biological samples requiring low protein binding media; polypropylene membranes for general filtration media and solvent-based samples; glass microfiber (GMF) membranes for particulate-laden liquids; and depth polypropylene (dp polypropylene) membranes for aqueous or organic solvents with high flow and loading capacity.

Filters with slit septa are ideal for high throughput automation and instruments with sensitive sampling needs. These filters eliminate coring problems associated with repeated sampling and minimize sample evaporation. The septa is made of PTFE membrane and silicone rubber.

The amber filters prevent photo degradation of light-sensitive samples. The amber chamber and plunger are translucent to allow visual inspection.

Compressor 14227-832 presses the plunger through the liquid with ease. It is ideal for viscous or particulate-laden samples.

Specifications for Whatman Mini-UniPrep Syringeless Filters, Whatman US203NPUORG Filters With Slit Septa Cap :

Membrane:  PTFE
PoreSize, µm:  0.45
Whatman No.:  US203NPUORG
Unit:  Pack of 100
Filtering Capacity:  0.5 mL
Maximum Operating Temperature:  50°C (120°F)

Whatman Mini-UniPrep Syringeless Filters, Whatman US203NPUORG Filters With Slit Septa Cap, Pack of 100 Orderable Models

List of Orderable Models

  • Whatman Mini-UniPrep Syringeless Filters, Whatman US203NPUORG Filters With Slit Septa Cap , MPN: US203NPUORG , Code: WH-9CL-US203NPUORG
Compare (0)