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PR1MA™ Signature Cell Strainers

Clean, reliable filtration with every use.

The PR1MA™ Cell Strainer system is a fast, efficient, and easy-to-use solution designed to streamline the process of cell isolation and filtration. Ideal for flow cytometry, this advanced straining system is perfect for detaching, isolating, and filtering cells from clusters and tissue samples.

Each cell strainer features a durable polypropylene frame supporting a nylon mesh, available in eight distinct, color-coded pore sizes ranging from 5 uM to
100 uM. Eight fine mesh options offer enhanced control for filtering cell aggregates and clumps, improving experimental precision.

The innovative frame design significantly improves filtration performance. By eliminating the “air-lock” effect, PR1MA™ Signature Cell Strainers promote faster flow-through and better aeration, reducing spillover and processing time.

Key Features

• Available in 8 color-coded pore sizes (5 uM to 100 uM) for precise cell sorting
• Fast flow-through thanks to advanced polypropylene frame design
• Includes universal adapter for tubes smaller than 50 mL
• Compatible with 6-well plates, flat-bottom plates, and culture dishes
• Interlocking and stackable design for improved lab workflow
• Built-in 1.5 mm feet for elevated straining into flat vessels
• Supplied sterile in individual blister packaging
• Certified RNase-, DNase-, pyrogen-, and cytotoxin-free

Specifications

Item #	Size	Color	Sterility	Description	Packaging
PR-CS5-1S	5 uM	Orange	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS10-1S	10 uM	Teal	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS20-1S	20 uM	Red	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS30-1S	30 uM	Purple	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS40-1S	40 uM	Blue	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS50-1S	50 uM	Grey	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS70-1S	70 uM	White	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
PR-CS100-1S	100 uM	Yellow	Sterile	PP frame, nylon mesh	Indiv. Wrap blister pks, w/ 1 reducing adapter, 50/pk
CELLADAPT	PR1MA™ Signature Reducing Adapter or 15 / 5 mL, 12 x 75 mm & 100 mm tubes, 25/pk

  

TPP Filtermax Filtration Units

The TPP Filtermax Filtration System is engineered for high-performance laboratory filtration with a premium 0.22 µm PES membrane. Its quadratic design offers a 20% larger filtration surface compared to circular membranes, improving throughput and saving valuable refrigerator space. The stable square bottom ensures secure handling during use, reducing the risk of tipping.

Each unit is designed for user comfort and flexibility. The tapered neck allows a firm grip, even with gloved hands, and the 45 mm neck thread ensures compatibility with standard bottles. Researchers can select a complete filter system, top only, or flask only to fit their workflow.

The Filtermax series is ideal for sterile filtration of media, buffers, and other laboratory liquids where speed, reliability, and sterility are essential.

Key Features

• Large square filter PES membrane (0.22 µm)
• High flow rate and low protein binding
• Square design for stability and optimized fridge storage
• Ergonomic tapered neck for slip-free grip
• 45 mm neck thread for bottle compatibility
• Flexible options: filter system, filter only, or flask only 

Quality Assurance

• Gamma-sterilized, DNAse/RNAse-Free, and pyrogen-Free
• Individually wrapped in a peel-off plastic wrapper
• Screw cap & vacuum accessories included in each sterile package 

Contact us today to request a sample and experience the difference of TPP Filtermax in your lab.

TPP Syringe Filters

TPP Syringe Filters are engineered by scientists for scientists, delivering superior performance in filtering small volumes of tissue culture media, aqueous solutions, buffers, additives, and water. Unlike standard syringe filters, TPP filters provide rapid throughput—3 to 5 times faster—thanks to their premium PES membrane and enlarged filter surface area. With low protein binding, high flow rates, and bi-directional functionality, these filters ensure reliable sterile filtration while preserving sample integrity.

Built with a robust 33 mm housing diameter, TPP Syringe Filters fit securely on 50 mL centrifuge tubes for ease of use in any laboratory workflow. Each unit is gamma-sterilized, DNAse/RNAse-free, and pyrogen-free, individually wrapped for sterility, and supplied in a convenient dispenser box. Ideal for sterile filtration of protein solutions, tissue culture media, additives, buffers, and water, TPP Syringe Filters combine speed, reliability, and ergonomic handling to optimize laboratory efficiency.

Key Features

• High-performance filtration is 3–5 times faster than standard syringe filters
• Premium PES membranes have 0.22 µm or 0.45 µm pore sizes
• Large filter surface increases flow rate and throughput
• Low protein binding preserves sample integrity
• Bi-directional use allows filtering forward or backward (single-use per direction)
• Robust design withstands burst pressures up to 10 bar (~145 psi)
• Secure 33 mm housing fits perfectly on 50 mL centrifuge tubes
• Sterile packaging is gamma-irradiated, DNAse/RNAse-free, pyrogen-free, and individually wrapped
• Convenient handling with card box dispenser for easy access

Quality Assurance

• Sterile (gamma irradiated)
• DNAse/RNAse-free
• Pyrogen-free
• Individually wrapped in peel-off blister packaging

Applications

• Sterile filtration of protein solutions
• Tissue culture media preparation
• Additives and buffer filtration
• Rapid processing of aqueous solutions and water

Specifications

Contact us to request free samples of TPP Syringe Filters and experience faster, more reliable sterile filtration for your laboratory workflows.

PR1MA™ Centrifuge Tube Filter Systems

• Eliminate a sample transfer step by filtering directly into a 50mL tube
• Polyethersulfone (PES) membrane for high flow and low binding
• One Centrifuge Tube Stand included with each case of 50mL Centrifuge Tube Filter Systems
• Centrifuge tube Stands are manufactured from polypropylene and are autoclavable, reusable and recyclable
• Centrifuge Tube Stand will hold one 50mL tube, three 15mL tubes and three microcentrifuge tubes (1.5mL)

Specifications
 

 
PR1MA™ Cell Strainers

PR1MA™ cell strainers from MIDSCI™ can be used for many applications including isolating cells and removing clumps or debris. They are compatible with standard 50 mL centrifuge tubes. The exclusive Pestle design improves the manipulation of material in the strainer during operation.

• Polypropylene housing with nylon mesh filter eliminates the need to fabricate filters from gauze, paper, nylon mesh, or other materials
• The elongated lip on the housing extends beyond the edge of the centrifuge tube enabling aseptic handling with forceps
• Extended gripping tab on housing for easy handling
• Available in three porosities: 40, 70 & 100 µm
• Color-coded by mesh porosity for easy identification
• Packaged sterile (gamma irradiated) in individually wrapped peel-to-open paper/plastic wrapper or bulk packed in bags

Forensic MicroSpin

• Forensic MicroSpin is a valuable device for the extraction of DNA from crime scene samples.
• Forensic MicroSpin is specifically manufactured to prevent DNA or RNA contamination of the device prior to use.
• The receiver tube can be capped to protect the sample for storage or freezing

Spec and Instructions:

• The device has a filter unit, and a 2ml graduated micro centrifuge tube with an attached cap.
• The filter unit has an integral perforated bottom that filter acts like a strainer and allows fluids to pass but retains small cloth samples in the filter unit.
• A cloth sample from the crime scene is cut into small pieces and inserted in the filter unit.
• Add appropriate solvents or buffers to the cloth sample in the filter unit that will permit extraction of DNA.
• The filter unit is then placed into the 2ml microcentrifuge receiver tube, and the entire assembly is centrifuged in a microcentrifuge as indicated in the DNA extraction protocol being used by the forensic laboratory.
• Following centrifugation, the filter unit is removed from the filtrate receiver tube, and the cellular debris in the bottom of the tube can be DNA fingerprinted by the forensic technician.
• Maximum centrifugal force is 20,000 x g. Non-Sterile.
• Includes Filter Unit & 2.0ml Receiver Tube

Special Pricing on select filters for a limited time!

Item # RJP3222SH – 100/pk – Was $158.00 - Now $125

 

Offer valid until 12/31/25 or while supplies last. No substitutions.
Cannot be combined with other offers or discounts.
All terms and conditions apply.

 

See Water Systems flyer for more details.

RephiQuik 0.22 uM Syringe Filters

PTFE, PVDF, PES & Nylon Membranes – Non-Sterile.

RephiQuik 0.22 uM Non-sterile Syringe Filters are precision-engineered for fine filtration and sterilization of aqueous, organic, or protein-based solutions in laboratory workflows. Designed for high performance with low extractables, these filters feature four membrane options—PTFE, PVDF, PES, and Nylon—to meet the diverse needs of analytical and research applications.

Each filter is constructed with a durable polypropylene (PP) housing and includes a female luer-lock inlet with a male luer-slip outlet for secure, leak-free operation. The 0.22 uM pore size enables efficient removal of bacteria and fine particulates, ensuring clarity, sterility, and protection of downstream systems such as HPLC instruments and cell cultures.

The filters offer a large effective filtration area with minimal hold-up volume, ensuring maximum recovery of precious samples. The membrane type and pore size are clearly printed on each unit, and color-coded housings provide quick visual identification: blue (PTFE), yellow (PVDF), green (PES), and purple (Nylon).

Membrane Options & Applications

• PTFE (Polytetrafluoroethylene)
• Hydrophobic membrane for highly aggressive solvents, strong acids, and gases. Excellent for chemical compatibility in HPLC and air filtration.
• PVDF (Polyvinylidene fluoride)
• Hydrophilic, low protein binding. Ideal for filtration of protein solutions, biological samples, and molecular biology workflows.
• PES (Polyethersulfone)
• Hydrophilic with asymmetric structure for rapid filtration of aqueous and slightly organic solutions. Optimized for cell culture and sterilization of buffers.
• Nylon
• Hydrophilic, chemically resistant to a wide range of solvents including ACN, DMF, and DMSO. Suitable for aqueous and organic sample filtration. 

Key Features

• Pore Size: 0.22 uM – ideal for sterilizing filtration
• Diameters Available: 13 mm (for up to 10 mL samples) and 32 mm (for up to 100 mL samples)
• Maximum Operating Pressure: 10 bar (145 psi)
• Low hold-up volume with high flow rate
• Leak-proof design for consistent results
• Color-coded for easy membrane identification
• Clearly labeled with membrane type and pore size
• Non-sterile – ready for general lab use and pre-sterilization protocols

Specifications

Diameters	13 mm	32 mm
Effective Filtration Area	0.80 cm2	4.4 cm2
Length, Inlet to outlet	21 mm	26 mm
Housing material	Polypropylene (PP)	Polypropylene (PP)
Inlet Fittings	Female Luer-Lok	Female Luer-Lok
Outlet Fittings	Male Luer slip	Male Luer slip
Process Vol.	1 to 10 mL	10 to 100 mL
Max. Operating Pressure	10 bar (145 psi)	10 bar (145 psi)
Max. Operating Temp.	45ºC	45ºC

 

RephiQuik 0.45 uM Syringe Filters

PTFE, PVDF, PES & Nylon Membranes - Non-sterile.

RephiQuik 0.45 uM Non-sterile Syringe Filters are designed for fast, reliable filtration of aqueous, organic, or protein-based solutions in laboratory settings. Available with PTFE, PVDF, PES, and Nylon membranes, these syringe filters provide broad chemical compatibility, high flow rates, and low extractables—making them ideal for a wide range of filtration applications, including sample preparation, HPLC, and protein purification

Each filter features a high-quality polypropylene (PP) housing and a secure female luer-lock inlet with a male luer-slip outlet. The filters offer a large effective filtration area with minimal hold-up volume, ensuring maximum recovery of precious samples. The membrane type and pore size are clearly printed on each unit, and color-coded housings provide quick visual identification: blue (PTFE), yellow (PVDF), green (PES), and purple (Nylon).

With a consistent pore size of 0.45 uM, these filters support efficient removal of particles and microbes, enabling improved sample clarity and system protection.

Membrane Options & Applications

• PTFE (Polytetrafluoroethylene)
• Hydrophobic, ideal for aggressive organic solvents, acids, and gases. Excellent chemical resistance.
• PVDF (Polyvinylidene fluoride)
• Hydrophilic, low protein binding. Best for protein solutions, biological samples, and DNA/RNA filtration.
• PES (Polyethersulfone)
• Hydrophilic, asymmetric structure for fast flow rates. Recommended for aqueous and slightly organic samples.
• Nylon
• Hydrophilic with broad chemical compatibility. Suitable for both aqueous and organic solvents, including ACN, DMF, and DMSO.

Key Features

• Pore Size: 0.45 uM
• Diameters Available: 13 mm (up to 10 mL samples) and 32 mm (up to 100 mL samples)
• Maximum Operating Pressure: 10 bar (145 psi)
• Low hold-up volume with high throughput
• Leak-proof design to protect downstream analysis
• Color-coded housings for easy identification
• Clearly labeled with pore size and membrane type
• Non-sterile – designed for general laboratory use

Specifications

Diameters	13 mm	32 mm
Effective Filtration Area	0.80 cm2	4.4 cm2
Length, Inlet to outlet	21 mm	26 mm
Housing material	Polypropylene (PP)	Polypropylene (PP)
Inlet Fittings	Female Luer-Lok	Female Luer-Lok
Outlet Fittings	Male Luer slip	Male Luer slip
Process Vol.	1 to 10 mL	10 to 100 mL
Max. Operating Pressure	10 bar (145 psi)	10 bar (145 psi)
Max. Operating Temp.	45ºC	45ºC

 

Special Pricing on select filters for a limited time!

Item # RJF502210 – 10/pk - Was $136.63 - Now $100

 

Offer valid until 12/31/25 or while supplies last. No substitutions.
Cannot be combined with other offers or discounts.
All terms and conditions apply.

 

See Water Systems flyer for more details.

RephiQuik 50 mm PTFE Filter

Hydrophobic Vent Filter for Sterile Gas and Organic Solution Filtration.

The RephiQuik 50 mm PTFE Filter is a high-performance, ready-to-connect venting filter engineered with a hydrophobic PTFE membrane. Designed for use in lab and biopharma environments, this filter ensures safe and sterile air or gas flow, effectively preventing contamination.

Ideal for fermenter air sterilization and incubator gas filtration, the RephiQuik PTFE filter offers exceptional chemical resistance, making it perfectly suited for handling aggressive organic solutions. It can also be used between a pump and a receiving vessel to protect valves and pump components from damage caused by aqueous solutions.

Key Features

• Hydrophobic PTFE membrane supported by high-density polyethylene (HDPE)
• Durable polypropylene housing
• 50 mm diameter for optimized flow
• Excellent chemical compatibility
• Allows free passage of air and gases while blocking aqueous solutions and aerosols
• Equipped with ¼ In. single hose barb connections on both ends
• Autoclavable for repeated sterile use

Applications

• Sterile filtration of fermenter air
• Incubator gas filtration
• Filtration of aggressive organic solvents
• Pump and component protection in fluid systems 

Specifications
 

Diameters	50 mm
Housing material	Polypropylene (PP)
Filter Media material	PTFE
Inlet / Outlet Connections	1/4 In. Hose Barb
Pore Size	0.22 uM

Pall® Omega™ Ultrafiltration Membrane Disc Filters

High Performance and Stability for Users of Conventional, Non-Disposable Stirred Cell

Polyethersulfone membrane provides higher flow rates and lower protein binding than competitive regenerated cellulose. This results in lower processing times and the highest possible recoveries.

Discs can be washed and reused.
 
 

Pall® Acrodisc® Syringe Filters with Supor® Membrane, Sterile

Syringe filters ideal for biological and general research.

• Large pore sizes for high throughput and fast flow rates
• Low protein binding to minimize sample loss
• Built in pre-filter for difficult to filter liquids

Supor® (polyethersulfone) membrane provides high throughput and fast flow rate. The filters of 0.2 and 0.45 μm pore sizes provide sterilization of small volumes of buffers, culture media, and additives. Low protein binding to minimize sample loss.

These Supor syringe filters are offered as recommended replacements for the discontinued HT Tuffyrn syringe filters.