General Lab Products & Reviews

(This is the suggested replacement for 2012) 1.2 mL capacity with conical bottom Self-standing design Black graduations and larger marking spots for easier filling and sample identification Manufactured from polypropylene to withstand temperatures to -196°C Silicone washer for a secure seal Vials may be color coded with inserts (see Cat. No. 430499) Special base design allows vials to be locked into cryogenic rack and t…

4 mL capacity with round bottom Black graduations and larger marking spots for easier filling and sample identification Manufactured from polypropylene to withstand temperatures to -196°C Silicone washer for a secure seal Vials may be color coded with inserts (see Cat. No. 430499) Sterilized by gamma radiation Certified nonpyrogenic and DNase/RNase-free

These 250 mL Costar® disposable polystyrene bottles have smooth sides and are ideal for storage of media, buffers and other aqueous solutions. 45 mm polyethylene plug seal cap provides an airtight seal and helps minimize the risk of contamination. Sterile, certified nonpyrogenic

Paper/plastic wrap allows easy opening by either pop-through or peel-apart techniques. It is also ideal for sterile tissue culture applications, especially while wearing latex gloves, as the wrap reduces static cling. Color-coding on paper allows easy size identification. Paper/plastic wrap allows full view Unique color-coded magnifying stripe for easier meniscus viewing. Sterile, individually wrapped and certified nonpyro…

(This is the suggested replacement for 431653 and 431090)Corning® 50 mL clear polypropylene (PP) conical bottom centrifuge tubes come with the advanced polyethylene CentriStar™ caps and are packed 25 per rack. The CentriStar™ cap has an easy-on/easy-off flat top and offers advanced ergonomics with its wider knurls and roll-over edge design for easier gripping. This leak-proof design comes with a revolutionary plug feature that…

4 mL capacity with round bottom Self-standing design Black graduations and larger marking spots for easier filling and sample identification Manufactured from polypropylene to withstand temperatures to -196°C Silicone washer for a secure seal Vials may be color coded with inserts (see Cat. No. 430499) Special base design allows vials to be locked into cryogenic rack and tray (Cat. No. 430525 or 431131) for single-hande…

Minimizes unnecessary transfers by filtering directly into 50 mL centrifuge tube. Includes two centrifuge tube stands with each case. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding and are good for filtering cell culture media. Polypropylene centrifuge tube is supplied with an individually wrapped cap for storage. Individually packaged, sterile, certified nonpyrogenic. Expiration date a…

Easy application and removal for short- and long-term storage Provide tight seal to minimize evaporation and condensation and enables oil-free operation when used with thermal cyclers with heated lids Suitable for use between -80°C and 150°C, is not transparent, and is pierceable DMSO-resistant Nonsterile DNase- and RNase-free

Corning® 500 mL Bottle Top Vacuum Filter, 0.22 µm Pore 33.2cm2 PES Membrane, Fits 33mm Diameter Necks, Sterile, 12/CaseFits plastic or glass media bottles with 33mm neck sizes.Polyethersulfone (PES) membranes provide the fastest flow rates, the lowest protein binding and low extractables and are best for filtering cell culture media.Angled hose connector simplifies vacuum line attachment.Individually packaged, sterile and cert…

Fits plastic or glass media bottles with 45mm neck sizes. Polyethersulfone (PES) membranes provide the fastest flow rates, the lowest protein binding and low extractables and are best for filtering cell culture media. Angled hose connector simplifies vacuum line attachment. Individually packaged, sterile and certified nonpyrogenic. Each system has the membrane material and pore size printed on the unit and is color-coded…

These Costar® 2.0 mL microcentrifuge tubes are made of natural (uncolored) polypropylene and are RNase-/DNase-free. Supplied nonsterile and are autoclavable External graduations and frosted writing spot for easy sample identification Positive seal design allows for repeated opening and closing Flat cap surface for convenient labeling Withstands a maximum RCF of 17,000xg

These Costar® 1.7 mL microcentrifuge tubes are made of colored polypropylene and are RNase-/DNase-free. Rainbow pack includes one bag each of blue, green, yellow, red and orange tubes. 500/case Supplied nonsterile and are autoclavable External graduations and frosted writing spot for easy sample identification Positive seal design allows for repeated opening and closing Flat cap surface for convenient labeling Withstand…

These Costar® Spin-X® centrifuge tube filters have a 0.22 µm pore CA membrane-containing filter unit within a 500 µL capacity polypropylene microcentrifuge tube. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding Ideal for removing bacteria, particles, or cells from liquids, HPLC sample preparation and DNA removal from agarose or acrylamide gels. Sterile and certified nonpyrogenic and DNase-/RN…

Fits plastic or glass media bottles with 45mm neck sizes. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding and are good for filtering cell culture media. Angled hose connector simplifies vacuum line attachment. Individually packaged, sterile and certified nonpyrogenic. Each system has the membrane material and pore size printed on the unit and is color-coded by membrane type for easy produ…

The Jouan RC10 series of vacuum concentrators/centrifugal evaporators offers a wide range of product protection features allied to rapid and safe concentration of heat-labile samples. The RC10 modules can be combined with oil-free or high vacuum pumps, a choice of cold traps and a wide selection of rotors (eliminating sample loss by transfer), ensuring solvent recovery and sample concentration in the minimum time. Product d…

Volume: 15 - 500max. Temp.: 450, 650, 850 °C Chamber furnaces with air circulation for the heat treatment of metals in normal atmospheres, multilayer insulation, various processing temperatures, optimum temperature distribution to +- 2K, horizontal and vertical air circulation, door safety switch, high air exchange rate, extras on request.

Heating elements embedded in grooves radiating freely into the furnace chamber give these models particularly short heating times. Thanks to their robust lightweight refractory brick insulation, they can reach a maximum working temperature of 1300 °C. These models thus represent an interesting alternative to the familiar L(T) 3/11 models, when you need particularly short heating times or a higher application temperature. T…

Volume: 7 - 17 l max. Temp.: 1280 °C Muffle furnace for the heat treatment of materials, parallel movement of door, lightweight refractory brick insulation, robust design.

These compact melting furnaces for the melting of non-ferrous metals and alloys are one of a kind and have a number of technical advantages. Designed as tabletop models, they can be used for many laboratory applications. The practical counter balanced hinge with shock absorbers and the pouring groove on the front of the furnace make exact dosing easy when pouring the melt. The furnaces are available for furnace chamber tempera…

Minimizes unnecessary transfers by filtering directly into 50 mL centrifuge tube. Includes two centrifuge tube stands with each case. Cellulose acetate (CA) membranes provide fast flow rates and low protein binding and are good for filtering cell culture media. Polypropylene centrifuge tube is supplied with an individually wrapped cap for storage. Individually packaged, sterile, certified nonpyrogenic. Expiration date a…

Cellulose acetate (CA) membranes provide fast flow rates and low protein binding and are good for filtering cell culture media. 500 mL receiver bottles feature easy grip sides for improved handling. Additional storage bottles can be purchased to increase capacity. Bottle caps are supplied sterile and individually packaged. Angled hose connector simplifies vacuum line attachment. Individually packaged, sterile and nonpyrogenic.…

20mm aluminum crimp cap - blank

20mm aluminum crimp cap with silicone/PTFE liner