Product Description
The CELLTREAT 229746 is a sterile, individually wrapped polyethersulfone (PES) syringe filter with a 0.22µm pore size and 13mm membrane diameter. Designed for the sterilization and clarification of aqueous solutions, buffers, and cell culture media, the CELLTREAT PES syringe filter combines high flow rates, low protein binding, and a no-adhesive construction in a convenient, ready-to-use format. Supplied 75 filters per case.
PES Membrane — The Most Popular Choice for Aqueous Filtration Polyethersulfone (PES) is the preferred membrane material for aqueous laboratory filtration, and for good reason. The polyethersulfone membrane ensures high flow rates and excellent chemical compatibility. Pipette PES offers significantly faster flow rates than PVDF at the same pore size, and its low affinity for proteins and extractables makes it ideal for applications where sample integrity and recovery are critical — including cell culture media preparation, buffer sterilization, and protein solution clarification.
No-Adhesive Molded Construction The membrane is molded in place — no adhesives are used Quality Biological — providing a reliable, leak-free seal between the membrane and the polypropylene housing. This eliminates the risk of adhesive leaching into your sample, a common concern with lesser-quality syringe filters used in sensitive biological and analytical applications.
Individually Wrapped — Sterile and Ready to Use Each filter is individually packed, sterile, in peel-to-open paper/plastic blister packs. CP Lab Safety This format maintains sterility up to the point of use and makes single-filter dispensing simple and contamination-free — ideal for clean benches, biosafety cabinets, and sterile technique workflows.
Color-Coded for Error-Free Identification The 229746 features a green housing, color-coded by membrane type for instant visual identification at the bench. The color-coded syringe filters are printed with membrane material and pore size opposite the luer-lock CP Lab Safety — so membrane type and pore size are always visible even when the filter is attached to a syringe.
Universal Luer Connections Female luer-lock inlet and male luer slip outlet ensure secure, leak-free connection with standard laboratory syringes. Compatible with most disposable and glass syringes.
Key Features
- Membrane type: Polyethersulfone (PES) — most popular aqueous filtration membrane
- Pore size: 0.22 µm (sterilizing grade)
- Membrane diameter: 13 mm
- Housing material: Polypropylene (PP), green
- No-adhesive molded membrane construction — no leaching risk
- Female luer-lock inlet / male luer slip outlet
- Sterile (gamma irradiated)
- Individually wrapped in peel-to-open blister packs
- Non-pyrogenic
- RNase-free and DNase-free
- Low protein binding and low extractables
- Faster flow rate than PVDF at equivalent pore size
- Printed with membrane type and pore size for easy identification
- 75 filters per case
Typical Applications Sterilization and clarification of cell culture media, buffer and reagent filtration, protein solution clarification, HPLC sample preparation, removal of bacteria and particulates from aqueous solutions, and general sterile filtration in biological and analytical laboratory workflows.
Also Available — CELLTREAT Syringe Filter Family:
- 229746 — PES, 0.22µm, 13mm, 75/pack (this product)
- 229747 — PES, 0.22µm, 30mm, 30/pack
- 229748 — PES, 0.45µm, 13mm, 75/pack
- 229749 — PES, 0.45µm, 30mm, 30/pack
Specifications
| Specification | Value |
|---|---|
| SKU / Catalog # | 229746 |
| Manufacturer | CELLTREAT Scientific Products |
| Membrane Type | Polyethersulfone (PES) |
| Pore Size | 0.22 µm |
| Membrane Diameter | 13 mm |
| Housing Material | Polypropylene (PP) |
| Housing Color | Green |
| Inlet Connection | Female luer-lock |
| Outlet Connection | Male luer slip |
| Sterility | Sterile (gamma irradiated) |
| Packaging | Individually wrapped, peel-to-open blister pack |
| Non-Pyrogenic | Yes |
| RNase/DNase Free | Yes |
| Pack Size | 75 filters per case |
