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.
1.5 mL / Light-Blocking Microcentrifuge Tubes
There are variations in bottom shape, presence of lids, light-blocking types, etc. Additionally, the snugness of lid fitting can be chosen depending on the product, so please verify the balance between sealability and ease of opening and closing with samples. RNase / DNase / Human-DNA Free Sterilized / Non-sterilized, Autoclavable
0.6 mL / 5 mL Microcentrifuge Tubes
It’s a 0.6 mL round-bottom tube for small volume and a 5.0 mL round-bottom tube for large volume. RNase / DNase / Human-DNA Free Autoclavable
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
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.
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.
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 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
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 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
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.