Centrifuge Tubes / Test Tubes

The tubes offer a wide range of capacities from 0.5 mL to 50 mL. In addition to a special lineup including light-shielding types and low protein adsorption types, even general-purpose types have features in the bottom shape and cap specifications. Particularly recommended are O-ringless screwcap tubes, conical tubes, and cryo tubes, which achieve high air-tightness at a low cost without using O-rings. Additionally, the caps of microtubes can be chosen for their snug fit according to preference.

Hyper Microtube

An intricately crafted specification, quietly supporting your research. Small stresses accumulate unnoticed in daily experiments. Over time, even minor things can lead to significant fatigue and discomfort. The more you use it, the more you’ll appreciate its quality. That’s the essence of Watson’s definitive microtube, designed for extended use and satisfaction. RNase / DNase / Human-DNA Free 1.5 mL / 2.0 mL Sterilized / Non-sterilized, Autoclavable

Protein Low Binding Microcentrifuge Tube “PROKEEP”

PROKEEP is designed for protein or peptide analysis (SDS-PAGE, HPLC, MS). It mitigates the risk of sample loss and improves the signals obtained. RNase / DNase / Human-DNA Free 1.5 mL / 2.0 mL Autoclavable

Microcentrifuge Tube Related Products

Homogenizer Pestles Special pestles for Watson brand microcentrifuge-tubes. You can efficiently crush the sample along the curve of the tube bottom shape. Pestles can be attached to bit-type screw drivers commercially available.

Cap Lock It prevents the lid of the microtube, warmed in a constant temperature bath, from opening due to internal pressure. The handle on the top is convenient for removing the tube from the hot constant temperature device.

O-ring less Screwcap Tubes

Featuring a double-sealed design, it ensures a leak-free experience even without an O-ring. Achieving high air tightness with two sealing areas. • RNase / DNase / Human-DNA Free • Maximum centrifugal force: 20,000×G (* 17,000 x G for 0.5 mL tube) • Hygienic small portion packaging • Polyethylene Cap • 0.5 mL / 1.5 mL / 2.0 mL • Self-Standing / Conical Bottom • Sterilized / Non-sterilized * The product cannot be autoclaved.

Screwcap Tubes

Made of polypropylene and autoclavable. The cap features a built-in silicone rubber O-ring. • RNase / DNase / Human-DNA Free • Maximum centrifugal force: 20,000×G (* 17,000 x G for 0.5 mL tube) • Hygienic small portion packaging • Resistant to both pressure and freezing • 0.5 mL / 1.5 mL / 2.0 mL • Self-Standing / Conical Bottom • Sterilized / Non-sterilized

Screwcap Tube Related Products

Screwcap Opener
Easy to open the cap without direct touch by hand. Autoclavable.

Piccolo Rack
The notch (Knurled area) is made both on the body of the Watson Screwcap Tube and on each of well of the Piccolo Rack so that the Screwcap Tube is completely fixed. Thus, the cap of the Screwcap Tube can be easily opened and closed with one hand. Autoclavable.

Freezer Storage Rack
This storage box is made of heat-resistant and impact-resistant polycarbonate. (The plate is made of polypropylene) It can store tubes up to 2.0 mL in size. Autoclavable.


Vial for cryopreservation in the vapor phase of liquid nitrogen (-196°C) • RNase / DNase / Human-DNA Free • Pyrogen-free • Fillable up to maximum capacity. • Characteristic Bottom shape • Flat Cap • Sterilized • 1.0 mL / 2.0 mL • Internal Thread / External Thread

Cryotubes Related Products

Cryotube Cap Opener for Internal Thread This is our dedicated opener for our Internal Thread type cryotubes. The Internal Thread type offers a high sealing effect but may be difficult to open by hand. Our opener makes it easy to open without direct hand contact. Autoclavable Cryotube Box The Cryotube box for 40 tubes. For 1.0 mL cryotubes / 2.0 mL cryotubes

Centrifuge Tubes

Half-plug seal, sealing point, triple-thread screw. A centrifuge tube filled with innovative design to achieve high airtightness. • RNase / DNase / Human-DNA Free • Pyrogen-free • Sterilized • 15 mL / 50 mL / 50 mL Self-Standing

Centrifuge Tubes Related Products

Centrifuge Tube Floating Rack “”Jellyfish”” A centrifuge tube rack that can also be used as a floater. • Autoclavable • Dual-use: as a rack / as a floater • 4 tubes each for 15 mL and 50 mL

Nuclease-free guarantee

RNase/DNase/Human-DNA Free

This mark shows RNase/DNase/Human-DNA free. Products with this mark are manufactured in the clean room under our high quality control, and inspected to meet our strict quality standards. RNase/DNase-free guarantees can be issued for each lot upon your request.

Guaranteed pyrogen-free

Products bearing this mark, upon request, will be issued with a Pyrogen-Free Test Report, conducted by the following test method: [Endotoxin Test Method] Referencing the Japanese Pharmacopoeia, confirmation is made using the Endotoxin Test Chromogenic Method that the level is 0.05 EU/mL or below.