Centrifuge Tubes / Test Tubes O-ring less Screwcap Tubes Featuring a double-sealed design, it ensures a leak-free experience even without an O-ring. The protruding part inside the cap (1st sealing area) seals the gap between the cap and the tube body.Additionally, fully tightening the cap seals the second sealing area tightly with the upper part of the tube body, preventing sample leakage and evaporation. Maximum centrifugal force: 20,000×G* We use 100% virgin medical-grade polypropylene, and our proprietary design achieves a maximum centrifugal force of 20,000×G (water, 15 minutes).For 0.5 mL tubes, a maximum centrifugal force of 17,000×G. Hygienic small portion packaging A small sterilized package consists of 20 pcs of screw tubes with its caps sealed completely.More hygienic performance is available. Convenient for positioning the tube when centrifugation A marker (notch), which is convenient for positioning the tube during centrifugation and other purposes, is provided on the flange of the tube. Polyethylene Cap The lineup of user-selectable 5 colors is capable of classification.*Not Autoclavable Precautions: Handling Screwcap Tubes under the Liquid Nitrogen In terms of safety, store the screwcap tubes in the vapor phase. To avoid any risks such as the tube rupture and the sample spatter, do NOT handle the screwcap tube under the liquid phase. Wear a face shield, protective clothes, and gloves when handling liquid nitrogen for defrosting. 0.5mL O-ring less Screwcap Tubes Tube: virgin polypropyleneCap: PolyethyleneMaximum centrifugal force: 17,000×G*(water, 15 minutes)Flat top (with marking space)RNase/DNase/Human-DNA free Cat. No.ItemUnit1394-050-SS-C0.5 mL O-ring less Screwcap Tube, Self-standing, Clear500 tubes1394-050-SS-B0.5 mL O-ring less Screwcap Tube, Self-standing, Blue500 tubes1394-050-SS-G0.5 mL O-ring less Screwcap Tube, Self-standing, Green500 tubes1394-050-SS-R0.5 mL O-ring less Screwcap Tube, Self-standing, Red500 tubes1394-050-SS-Y0.5 mL O-ring less Screwcap Tube, Self-standing, Yellow500 tubes1394-050-SS-CS0.5 mL O-ring less Screwcap Tube, Self-standing, Clear500 tubes (20 tubes x 25 bags)1394-050-SS-BS0.5 mL O-ring less Screwcap Tube, Self-standing, Blue500 tubes (20 tubes x 25 bags)1394-050-SS-GS0.5 mL O-ring less Screwcap Tube, Self-standing, Green500 tubes (20 tubes x 25 bags)1394-050-SS-RS0.5 mL O-ring less Screwcap Tube, Self-standing, Red500 tubes (20 tubes x 25 bags)1394-050-SS-YS0.5 mL O-ring less Screwcap Tube, Self-standing, Yellow500 tubes (20 tubes x 25 bags)1394-050-SS-LP-C0.5 mL O-ring less Screwcap Tube attached Loop Cap, Self-standing500 tubes1394-050-SS-LP-CS0.5 mL O-ring less Screwcap Tube attached Loop Cap, Self-standing500 tubes (20 tubes x 25 bags) 1.5mL O-ring less Screwcap Tubes Tube: polypropyleneCap: PolyethyleneMaximum centrifugal force: 20,000×G*(water, 15 minutes)Flat top (with marking space)RNase/DNase/Human-DNA free Cat. No.ItemUnit1394-150-C1.5 mL O-ring less Screwcap Tube, Conical Bottom, Clear500 tubes1394-150-B1.5 mL O-ring less Screwcap Tube, Conical Bottom, Blue500 tubes1394-150-G1.5 mL O-ring less Screwcap Tube, Conical Bottom, Green500 tubes1394-150-R1.5 mL O-ring less Screwcap Tube, Conical Bottom, Red500 tubes1394-150-Y1.5 mL O-ring less Screwcap Tube, Conical Bottom, Yellow500 tubes1394-150-CS1.5 mL O-ring less Screwcap Tube, Conical Bottom, Clear500 tubes (20 tubes x 25 bags)1394-150-BS1.5 mL O-ring less Screwcap Tube, Conical Bottom, Blue500 tubes (20 tubes x 25 bags)1394-150-GS1.5 mL O-ring less Screwcap Tube, Conical Bottom, Green500 tubes (20 tubes x 25 bags)1394-150-RS1.5 mL O-ring less Screwcap Tube, Conical Bottom, Red500 tubes (20 tubes x 25 bags)1394-150-YS1.5 mL O-ring less Screwcap Tube, Conical Bottom, Yellow500 tubes (20 tubes x 25 bags)1394-150-LP-C1.5 mL O-ring less Screwcap Tube attached Loop Cap, Conical Bottom500 tubes1394-150-LP-CS1.5 mL O-ring less Screwcap Tube attached Loop Cap, Conical Bottom500 tubes (20 tubes x 25 bags) Tube: polypropyleneCap: PolyethyleneMaximum centrifugal force: 20,000×G*(water, 15 minutes)Flat top (with marking space)RNase/DNase/Human-DNA free Cat. No.ItemUnit1394-150-SS-C1.5 mL O-ring less Screwcap Tube, Self-standing, Clear500 tubes1394-150-SS-B1.5 mL O-ring less Screwcap Tube, Self-standing, Blue500 tubes1394-150-SS-G1.5 mL O-ring less Screwcap Tube, Self-standing, Green500 tubes1394-150-SS-R1.5 mL O-ring less Screwcap Tube, Self-standing, Red500 tubes1394-150-SS-Y1.5 mL O-ring less Screwcap Tube, Self-standing, Yellow500 tubes1394-150-SS-CS1.5 mL O-ring less Screwcap Tube, Self-standing, Clear500 tubes (20 tubes x 25 bags)1394-150-SS-BS1.5 mL O-ring less Screwcap Tube, Self-standing, Blue500 tubes (20 tubes x 25 bags)1394-150-SS-GS1.5 mL O-ring less Screwcap Tube, Self-standing, Green500 tubes (20 tubes x 25 bags)1394-150-SS-RS1.5 mL O-ring less Screwcap Tube, Self-standing, Red500 tubes (20 tubes x 25 bags)1394-150-SS-YS1.5 mL O-ring less Screwcap Tube, Self-standing, Yellow500 tubes (20 tubes x 25 bags)1394-150-SS-LP-C1.5 mL O-ring less Screwcap Tube attached Loop Cap, Self-standing500 tubes1394-150-SS-LP-CS1.5 mL O-ring less Screwcap Tube attached Loop Cap, Self-standing500 tubes (20 tubes x 25 bags) 2.0mL O-ring less Screwcap Tubes Tube: polypropyleneCap: PolyethyleneMaximum centrifugal force: 20,000×G*(water, 15 minutes)Flat top (with marking space)RNase/DNase/Human-DNA free Cat. No.ItemUnit1394-200-C2.0 mL O-ring less Screwcap Tube, Conical Bottom, Clear500 tubes1394-200-B2.0 mL O-ring less Screwcap Tube, Conical Bottom, Blue500 tubes1394-200-G2.0 mL O-ring less Screwcap Tube, Conical Bottom, Green500 tubes1394-200-R2.0 mL O-ring less Screwcap Tube, Conical Bottom, Red500 tubes1394-200-Y2.0 mL O-ring less Screwcap Tube, Conical Bottom, Yellow500 tubes1394-200-CS2.0 mL O-ring less Screwcap Tube, Conical Bottom, Clear500 tubes (20 tubes x 25 bags)1394-200-BS2.0 mL O-ring less Screwcap Tube, Conical Bottom, Blue500 tubes (20 tubes x 25 bags)1394-200-GS2.0 mL O-ring less Screwcap Tube, Conical Bottom, Green500 tubes (20 tubes x 25 bags)1394-200-RS2.0 mL O-ring less Screwcap Tube, Conical Bottom, Red500 tubes (20 tubes x 25 bags)1394-200-YS2.0 mL O-ring less Screwcap Tube, Conical Bottom, Yellow500 tubes (20 tubes x 25 bags)1394-200-LP-C2.0 mL O-ring less Screwcap Tube attached Loop Cap, Conical Bottom500 tubes1394-200-LP-CS2.0 mL O-ring less Screwcap Tube attached Loop Cap, Conical Bottom500 tubes (20 tubes x 25 bags) Tube: polypropyleneCap: PolyethyleneMaximum centrifugal force: 20,000×G*(water, 15 minutes)Flat top (with marking space)RNase/DNase/Human-DNA free Cat. No.ItemUnit1394-200-SS-C2.0 mL O-ring less Screwcap Tube, Self-standing, Clear500 tubes1394-200-SS-B2.0 mL O-ring less Screwcap Tube, Self-standing, Blue500 tubes1394-200-SS-G2.0 mL O-ring less Screwcap Tube, Self-standing, Green500 tubes1394-200-SS-R2.0 mL O-ring less Screwcap Tube, Self-standing, Red500 tubes1394-200-SS-Y2.0 mL O-ring less Screwcap Tube, Self-standing, Yellow500 tubes1394-200-SS-CS2.0 mL O-ring less Screwcap Tube, Self-standing, Clear500 tubes (20 tubes x 25 bags)1394-200-SS-BS2.0 mL O-ring less Screwcap Tube, Self-standing, Blue500 tubes (20 tubes x 25 bags)1394-200-SS-GS2.0 mL O-ring less Screwcap Tube, Self-standing, Green500 tubes (20 tubes x 25 bags)1394-200-SS-RS2.0 mL O-ring less Screwcap Tube, Self-standing, Red500 tubes (20 tubes x 25 bags)1394-200-SS-YS2.0 mL O-ring less Screwcap Tube, Self-standing, Yellow500 tubes (20 tubes x 25 bags)1394-200-SS-LP-C2.0 mL O-ring less Screwcap Tube attached Loop Cap, Self-standing500 tubes1394-200-SS-LP-CS2.0 mL O-ring less Screwcap Tube attached Loop Cap, Self-standing500 tubes (20 tubes x 25 bags) Product Inquiry ※We also accept inquiries for mass production development of custom shapes, such as OEM and ODM, for plastic products. 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