Screw Cap Microcentrifuge Tubes

Photo of Screw Cap Microcentrifuge Tubes. Bio Plas
Bio Plas® brand screw-cap microcentrifuge tubes offer extraordinary strength, safety and reliability. They allow users to perform procedures that simply can't be done with other tubes. Spin it, store it, transport it (even by air). Boil it, irradiate it, immerse it in the vapor phase of liquid of liquid nitrogen -- it'll stand up to the test. Inside the screw cap, our ethylene propylene O-Ring forms a secure, leakproof seal. The cap's square threads won't strip -- and they're on the outside of the tube, so you minimize the risk of contaminating your sample -- or letting it contaminate you.
Photo of Polypropylene Microcentrifuge Tubes
Precision molded polypropylene microcentrifuge tubes have flat tops for writing on, graduations and a writing area on the side of the tube. All tubes tolerate centrifugal forces of up to 18,000 RCF.
Photo of Screw Cap Graduated Microcentrifuge Tubes
Premium quality polypropylene screw thread microcentrifuge tubes with graduations. Purchase caps separately. These tubes are easy to read and have superior clarity and durability. Internal seal-ring (nitrile) ensures a leakproof seal without the contamination problems associated with cap liners. Continuous threads require only a 1¼ turn to tighten. Caps are compatible with Sarstedt and Porex.