Wilmad 4MM THIN WALL GRADED SEAL EPR QTZ TUBE 275MM OAL

EPR Graded Seal Sample Tubes

Need to seal an EPR tube to your vacuum rack? Some EPR samples are air-sensitive.

Since oxygen is paramagnetic, many EPR samples are best studied after degassing.

For long-term storage, no other closure is better, but most vacuum racks incorporate Pyrex® components.

Sealing quartz to Pyrex® is a problem, unless you use sample tubes that incorporate a graded seal.

Order Wilmad’s Graded Seal/Constricted EPR Tubes, available in a variety of sizes.

Other configurations can be prepared, so if you don’t see the size you need, contact us about price and availabiility.