PetriSeal™ Sealing Film

PetriSeal™ stretches and conforms to form a tight seal and is temperature resistant, waterproof and chemically resistant. It resists abrasion and puncture and blocks vapor loss while reducing the rate of gas exchange. Use PetriSeal™ with microtiter plates, Petri dishes and culture plates to prevent to entry of contaminants. The seal remains flexible down to -30°C and can withstand continuous exposure from -40°C to +77°C (with intermittent exposure up to 100°C). Tests have shown that PetriSeal™ leaves no adhesive residue even after two years.

• Colors: Blue, Clear, Red, White & Yellow
• Tape Size: 0.50 In. x 108 Ft.

Specifications
 

Length	2,160 In. | 54864 mm
Width	0.50 In. | 12.7 mm
U of M	Roll

 

Proudly made in the USA! Click here for more made in America products!
   

Notice for U.S. Customers – RWD Consumables
Due to changes in U.S.–China tariffs, we will pause sales of these items after Tuesday, April 22, until further notice.
This is in anticipation of the expected De Minimis rule change on May 2.

For more information or alternative product recommendations, please contact us.

RWD Cell Separation Assembly Kit

Applications include immunology research, oncology research, neuroscience, stem cell research, and cell therapy.

RWD magnetic microbead cell separation products consist of Nano-Bead Cell Separation Platform and Nano-Beads (Column Based and Column free). Nano-sized magnetic beads do not need elution, and the separated cells can be directly used in downstream experiments such as flow cytometry, cell culture, single-cell sequencing, and more.

• High purity, high viability, and high recovery rate
• Obtained cells are compatible with downstream applications
• Mild, non-toxic, biodegradable

Kit Includes

• 1 box of LarSep Columns (25/pk)
• 1 LSC Separator (single channel)
• 1 Separation Stand

Work Flow

• Antibody incubation: Incubate the antibody with cell suspension at 4ºC for 10-15 mins.
• Microbead incubation: Incubate the magnetic microbeads with cell suspension at 4ºC for 10-15 mins.
• Magnetic separation: Put the separation column into the magnetic field and add the cell suspension into the column.
• Only cells labeled with magnetic beads will be captured in the column.
• Elution: Remove the column from the magnetic field and add a buffer to elute the positive cells.

Notice for U.S. Customers – RWD Consumables
Due to changes in U.S.–China tariffs, we will pause sales of these items after Tuesday, April 22, until further notice.
This is in anticipation of the expected De Minimis rule change on May 2.

For more information or alternative product recommendations, please contact us.

RWD Human Cell Separation Kits

CD3+ Cell Separation Kit - K1201-10

For positive selection or depletion of CD3+ T cells from peripheral blood, thymus, lymphoid, and tumor tissue.

CD4+ Cell Separation Kit - K1202-10

For positive selection or depletion of T helper cells (Th) from human peripheral blood, umbilical cord blood, lymph nodes, thymus, spleen, skin, and other samples.

CD8+ Cell Separation Kit - K1203-10

For positive selection or depletion of cytotoxic T cells (Tc) from human peripheral blood, umbilical cord blood, lymph nodes, thymus, spleen, skin, and other samples.

CD14+ Cell Separation Kit - K1204-10

For positive selection or depletion of monocytes from human peripheral blood, umbilical cord blood, spleen, lymph nodes, and other samples.

CD45+ Cell Separation Kit - K1205-10

For positive selection or depletion of white blood cells from human peripheral blood and lymphoid tissue samples.

CD19+ Cell Separation Kit - K1206-10

For positive selection or depletion of B cells from human peripheral blood, lymph nodes, bone marrow, and other single-cell suspensions.

Human NK Cell Isolation Kit - K1207-10

For negative selection or depletion of NK cells from single cell suspension of human peripheral blood. Non-NK cells, i.e., T cells, B cells, stem cells, dendritic cells, monocytes, granulocytes, and red blood cells are labeled by biotin antibodies coupled to magnetic beads. High purity NK cells are obtained by isolation of magnetic bead labeled cells.

*All kits are for research use only.

Specifications
 

Item #	Cell Type	Size	Capacity
K1201-10	T Cells	2 x 1 mL	For 1 x 10^9 Total Cells
K1202-10	T Helper Cells	2 x 1 mL
K1203-10	Cytotoxic T Cells	2 x 1 mL
K1204-10	Monocytes	2 x 1 mL
K1205-10	Leukocytes	2 x 1 mL
K1206-10	B Cells	2 x 1 mL
K1207-10	NK Cells	2 x 2 mL

 

Notice for U.S. Customers – RWD Consumables
Due to changes in U.S.–China tariffs, we will pause sales of these items after Tuesday, April 22, until further notice.
This is in anticipation of the expected De Minimis rule change on May 2.

For more information or alternative product recommendations, please contact us.

RWD High Activity Enzymatic Digestion Kits

Optimized enzymatic hydrolysis formulation for efficient and gentle digestion. Preserves the integrity of surface antigenic epitopes. Store in refrigerators at 4°C or -20°C.

• Targeted optimization of enzymatic hydrolysis formula can ensure high cell viability.
• Preserving cell surface epitopes leads to no effect on downstream experiments.

Notice for U.S. Customers – RWD Consumables
Due to changes in U.S.–China tariffs, we will pause sales of these items after Tuesday, April 22, until further notice.
This is in anticipation of the expected De Minimis rule change on May 2.

For more information or alternative product recommendations, please contact us.   

RWD Mouse and Microglia Cell Separation Kits

Mouse CD3+ Cell Separation Kit - K1301-10

For positive selection or depletion of mature T lymphocytes from mouse lymph nodes, thymus, tumors, and other samples.

Mouse CD4+ Cell Separation Kit - K1302-10

For positive selection or depletion of T helper cells (Th) from mouse lymph nodes, thymus, spleen, skin, and other samples.

Mouse CD8+ Cell Separation Kit - K1303-10

For positive selection or depletion of cytotoxic T cells (Tc) from mouse thymus, lymph nodes, spleen, and other samples.

Mouse CD45+ Cell Separation Kit - K1304-10

For positive selection or depletion of white blood cells from mouse lymphoid tissue or non-lymphoid tissue.

Mouse CD19+ Cell Separation Kit - K1305-10

For positive selection or depletion of B cells from mouse spleen and other samples.

CD11b+ (Microglia) cell separation Kit - K1306-10

For positive selection or depletion of microglia from human, adult mice, or rats brain tissue.

Specifications
 

Item #	Cell Type	Size	Capacity
K1301-10	T Lymphocytes	2 x 1 mL	For 1*10^9 Total Cells
K1302-10	T Helper Cells		For 1*10^9 Total Cells
K1303-10	Cytotoxic T Cells		For 1*10^9 Total Cells
K1304-10	Leukocytes		For 1*10^9 Total Cells
K1305-20	B Cells		For 2*10^9 Total Cells
K1306-10	Myeloid Cells		For 1*10^9 Total Cells

 

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

Bottle Benchtop Roller, Small

• CO2 incubator compatible
• Digitally controlled speed, up to 80 cycles/min
• Adjustable tilt from 1 to 18 degrees
• Multiple sizes and with 2, 3 and 4 platforms 
• 4 year warranty -   designed to last, rugged construction
• Made in the USA

• Infinity Rocker Pro (IR101) - 11x14 inch platform
• Infinity Rocker Mini (IR102) - 8x9 inch platform
• Infinity Rocker XL (IR103) - 20x16 inch platform 
  

• 11 x 14, 8 x 9, and 20 x 16 inch (28 x 36, 20 x 23, and 51 x 41 cm) platforms.

• Removable TIER 2 stacking trays double the support surface area. The trays just snap onto the platform and their spring loaded legs hold them securely in place.

Double, Triple and Quadruple Deckers:

• Stack 2, 3 & 4 versions provide 2 - 4 times as much capacity. The 2, 3 & 4 platforms each tilt about their own axis

• Offer a microcontroller to accurately control the speed to within 1 RPM. With the digital speed control, you can set the speed in increments of 1 RPM, from 1 to 80 RPM.

Clearance between levels on rockers:

IR211-12 inches of clearance in between the platforms; ideal for using 2 Stabilizers
IR301- 6.5 inches of clearance in between the platforms
IR401- 4 inches of clearance in between the platforms

Frequently Asked Questions:

Specifications:

Will these rockers work with different voltages (in different countries)?

Yes. The rocker uses 24V DC supplied by a small external power supply that plugs into a wall outlet. Next Advance will supply the appropriate power supply for the local power and wall outlet configuration.

What is the maximum load?

The rocker can handle 11 lbs. (5 kg).

What is the range for the tilt angle?

The amount that the rocker platform tilts back and forth can be adjusted from as little as +/- 1 degree to as much as +/- 18 degrees.

What is the difference between Infinity Rockers and Next Rockers?

Infinity Rockers and Next Rockers are both rugged, quiet, rockers with lots of power. Infinity Rockers have digital speed control and a digital display of the rocking rate in cycles per minute (cpm). Because Infinity Rocker motors are brushless, i.e. do not have brushes that can wear out, they will last for many years.

What is the rocking rate?

For Infinity Rockers, the rocking rate can be as slow as barely moving to a maximum speed of 80 cycles per minute (160 rocking motions per minute). Next Rockers are available in a regular speed range (4 to 80 cycles per minute) or super slow (1 to 20 cycles per minute).

What are the Super Slow versions?

The Next Rockers come in standard and super slow versions. For those applications that require slow, smooth rocking, we recommend the super slow (up to about 20 cycles per minute) versions. They provide finer speed control at the lower speeds. The motor in these versions is geared down for slower operation and greater power, just as gears on a bicycle allow for more power at lower speeds.

Can I use these rockers in incubators or cold rooms?

Our rockers can operate in incubators (up to 60°C) or cold rooms (down to 4°C) if the temperature is kept constant and the humidity is not excessive. Temperature swings which cause condensation will damage the electronics and void the warranty. In fact, the electronic circuitry includes additional heat sinks to ensure reliable operation at elevated temperatures.

Operation:

How do I adjust the tilt angle?

To adjust the angle, use a flat blade screwdriver to loosen the labeled screw on the rear of the instrument, slide the linkage to the desired position, then tighten the screw.

How do I adjust the rocking rate?

You can turn the knob on the front of the instrument to adjust the rocking speed.

Can I clean the rubber mat?

Yes. You can remove the rubber mat from the platform and clean it with soap and water. Let it dry before placing it back on the platform.