The best 13 mm syringe filter depends on the solution, required pore size, and how many filters your workflow uses. The Locofiltr 0.22 μm PES filters suit buyers seeking a small sterile pack, while its 50-pack is better for recurring use. CryoKing and the 100-piece sterile PES option offer larger quantities; COBETTER is a choice for buyers prioritizing its described layered membrane design and flow-rate features.
| Product | Best For | Pore Size | Pack Size |
|---|---|---|---|
| Locofiltr PES | Small sterile pack | 0.22 μm | 10 |
| COBETTER PES | Layered membrane design | 0.2 μm | 10 |
| CryoKing PES | Bulk filtration with connector details | 0.22 μm | 100 |
| Locofiltr PES 50 Pack | Repeat use with the same listed features | 0.22 μm | 50 |
| Sterile PES With GF Prefilter | Harder-to-filter solutions | 0.22 μm | 100 |
Locofiltr 0.22 μm PES, 10 Pack
This sterile, individually packed set contains 10 syringe filters with a 13 mm diameter and a 0.22 μm hydrophilic PES membrane. The product is listed for protein solutions, tissue culture media, additives, buffers, and water. Its naturally hydrophilic membrane does not require pre-wetting, and its low protein binding is intended to minimize sample loss.
Best for: Buyers who need a compact sterile pack for aqueous laboratory solutions and want a membrane described as suitable for protein-containing samples. It is selected for its clear application range and no-prewetting feature. Limitation: A 10-pack may be less convenient than a larger quantity for frequent workflows.
COBETTER Sterile PES, 10 Pack
This 13 mm sterile PES filter is listed with a 0.2 μm pore size and comes individually packed in a 10-pack. COBETTER describes a double-layer asymmetric membrane with a larger-pore prefilter layer and a 0.2 μm final filter. The listing also states that the design supports faster flow rates and higher operating pressures.
Best for: Buyers interested in a layered membrane structure for sterile filtration of cell culture media, buffers, or reagents. The listing also describes 0.1 μm filters for mycoplasma removal and 0.45 μm options for clarification, but this product is specified as 0.2 μm. Limitation: Do not assume this 0.2 μm model provides the separately described 0.1 μm pore size.
CryoKing PES, 100 Pack
CryoKing’s individually packed 13 mm filters use a 0.22 μm hydrophilic PES membrane. The listed uses include buffer, protein, and medium filtration. Product details specify a female Luer lock inlet and male Luer slip outlet. The listing also describes the filters as non-pyrogenic, surfactant-free, and low in extractables, and states protein binding is below 1.5%.
Best for: Buyers who need a larger supply and want connector information stated in the product details. The 100-piece pack and low-protein-binding claim make it relevant for repeat filtration of protein solutions. Limitation: Confirm that the stated inlet and outlet connection styles fit your setup before ordering.
Locofiltr PES, 50 Pack
This 50-pack has the same listed filter specifications as the Locofiltr 10-pack: a sterile, individually packed 13 mm filter with a 0.22 μm hydrophilic PES membrane. The manufacturer listing identifies protein solutions, tissue culture media, additives, buffers, and water as intended applications. It also highlights no-prewetting use and ultra-low protein binding.
Best for: Laboratories that want the listed Locofiltr features in a larger quantity than the 10-pack. It is selected for repeat workflows where a small pack could require frequent replenishment. Limitation: The listed features do not specify a connector type, so check the product details if connection style is a deciding factor.
Sterile PES With GF Prefilter, 100 Pack
This 100-piece sterile set is listed as 13 mm with a 0.22 μm PES membrane and polypropylene housing. Its GF prefilter is described as providing dirt-holding capacity and higher throughput for some hard-to-filter solutions. The listing also describes the membrane as hydrophilic, high-flow, and low in protein adsorption.
Best for: Buyers filtering solutions that may be harder to process and who want a bulk pack with a stated GF prefilter. It is selected for that prefilter feature and its listed uses in buffers, proteins, media, and additives. Limitation: The listing does not provide detailed connection specifications, so verify fit before purchase.
Buying Guide: How To Choose A 13 mm Syringe Filter
Which pore size should you choose?
Compare the pore size to the filtration purpose specified by your protocol. The products here are listed at either 0.2 μm or 0.22 μm. These labels are not identical, so select the exact size required rather than treating them as interchangeable. COBETTER’s description assigns different purposes to its 0.1, 0.2, and 0.45 μm options; the product reviewed here is the 0.2 μm version.
Is PES appropriate for your sample?
All five options use PES membranes. Product descriptions emphasize hydrophilic behavior and applications such as buffers, media, and protein solutions. If minimizing protein loss matters, compare the specific claims: Locofiltr describes ultra-low protein binding, while CryoKing states a value below 1.5%. These are listing claims, not a substitute for checking protocol requirements.
How many filters do you need?
A 10-pack suits lower-volume needs or a trial purchase; 50- and 100-piece packs are options for recurring use. Consider individually packaged sterile filters when single-use handling is part of your workflow. Pack size alone does not establish that a filter is appropriate for a particular sample.
Do connection details matter?
Check the inlet and outlet styles if your syringe or workflow requires a specific connection. CryoKing lists a female Luer lock inlet and male Luer slip outlet. The other product descriptions provided do not specify connection styles.
Frequently Asked Questions
What does 13 mm refer to on a syringe filter?
It refers to the filter diameter stated in the product specifications. Confirm the diameter your equipment or procedure requires before choosing a filter.
What is a 0.22 μm syringe filter used for?
The product listings describe 0.22 μm PES filters for applications including buffers, culture media, protein solutions, and other aqueous solutions. Follow the requirements of your specific procedure.
Do hydrophilic PES filters need pre-wetting?
The Locofiltr listing says its naturally hydrophilic membrane does not require pre-wetting. Check the instructions for the specific product you select.
When is a prefilter useful?
A prefilter may be relevant when a solution is harder to filter. The 100-piece sterile option describes its GF prefilter as having dirt-holding capacity for some hard-to-filter solutions.
Are 0.2 μm and 0.22 μm the same size?
No. The listings specify them separately. Choose the pore size required by your method or application rather than assuming the values are interchangeable.