Column Filters, for HPLC, 0.5 um Stainless Steel filter element and All-PEEK body. Disposable, with end plugs. Black. Cogent Brand. 5/PK.
Additional Info:
The Cogent In‑Line Column Filter (0.5 µm) is a disposable pre‑column protection device designed to safeguard analytical HPLC columns from particulate contamination before it can enter the packed bed. This is the most widely used Cogent column filter, valued for its balance of protection, convenience, and cost efficiency.
Each filter contains a 0.5 µm stainless steel filter element housed in an all‑PEEK body, providing excellent chemical compatibility while maintaining a metal‑free flow path outside the filter element itself. These filters are particularly effective at trapping undissolved sample particulates, pump‑seal debris, and other system‑generated contaminants that commonly damage or shorten column life.
The universal connection design fits all standard analytical HPLC column threads and pilot lengths. Installation requires only hand tightening followed by a quarter‑turn wrench, making replacement fast and repeatable without special tools.
Key Features
Effective Column Protection
Prevents particulates from entering the analytical column
Extends column lifetime and method stability
Protects against pump‑seal shedding and sample debris
0.5 µm Stainless Steel Filter Element
Fine particulate retention for analytical HPLC workflows
Ideal balance between protection and pressure impact
Consistent performance across routine methods
All‑PEEK Disposable Housing
Broad chemical compatibility
Lightweight, corrosion‑resistant construction
Disposable design eliminates cleaning or regeneration
Universal HPLC Connection
Fits all analytical HPLC column threads and pilot lengths
Simple installation with hand‑tight + quarter‑turn wrenching
Easily integrated into existing systems
Usage & Replacement Guidance
When operating with in‑line column filters, system backpressure should be monitored. A gradual pressure increase typically indicates filter loading.
To replace:
Reduce system pressure to atmospheric
Disconnect the in‑line filter
Dispose of the used unit
Install a new filter and resume operation
These devices are also commonly referred to as pre‑column filters due to their placement upstream of the analytical column.
Pressure Rating & Compatibility
Maximum pressure: 4,500 psi
Compatible with: Analytical HPLC systems
Not recommended for: UHPLC pressure ranges
For applications requiring larger pore sizes, a 2.0 µm version is also available.
Typical Applications
Routine analytical HPLC
Column life extension programs
Method development and validation
Sample matrices with particulate risk
Systems prone to pump‑seal shedding