United Scientific™ Test Tube Rack For 16mm Tubes, 31 Places, Yellow, Pack of 4

20 Racks of 25 Polypropylene tubes with conical bottoms and 50ml capacity. Blue HDPE leak-proof screw caps included. Centrifuge tube and rack sets are a convenient solution for organizing and storing conical bottom tubes. Racks are made of expanded polystyrene (EPS) and include holes arranged in a zigzag format for easy dispensing. Tubes have an outer diameter of 29.2mm and are 114.3mm tall. Tubes and caps feature specially-designed flat threads for vacuum-type closure that is leak-free at a pressure of >700mm Hg. Highly smooth hydrophobic internal surfaces minimize wall effect. ...

Pack of four polypropylene boxes are designed for storage of samples as low as -90° C. Hold both internal and external threaded cryogenic vials with 1ml or 1.8ml capacity, as well as microtubes with 1.5ml or 2ml capacity. Designed to hold up to 100 vials in a 10 x 10 array. These stackable boxes provide a small, space-efficient storage system within a freezer. Include a transparent hinged lid with a secure locking closure. Autoclavable.

Pack of 8 Sturdy Polypropylene Racks, each able to hold up to 20 microcentrifuge tubes with 1.5ml or 2.0ml capacity. Racks are designed to lock side-by-side for larger experiments. Positions are numbered for easy identification of samples. Bottoms feature rubber supports for better stability. Autoclavable.

MTC Bio™ new DuoClick™ tubes feature a unique, patent pending screw closure system. DuoClick tubes completely eliminate the excess force, splashing and general frustration of traditional snap-cap culture tubes. The advanced cap design includes two distinct positions for aerobic and anaerobic culturing (see flow-chart below). Just rotate the cap 1/4 turn to the first click to secure the cap in the aerobic position. Or, rotate it another 1/2 turn past the second click for a leakproof, airtight seal for anaerobic culturing. DuoClick tubes are available gamma sterilized, with screw ...

This pack of four polypropylene racks includes one each of blue, green, yellow and red. Rotate racks to hold tubes and vials of various sizes. Features: Each rack measures 175mm long x 90 mm wide x 65mm tall Built to withstand temperatures from -80° to 121°C Autoclavable