18-415
18-415 continuous thread caps are designed to provide a secure seal for containers with an 18-415 neck finish, including our glass test tubes. These closures are commonly used in laboratory, research, educational, and sample-handling environments where consistent containment is required. Available in multiple materials and liners, 18-415 caps support secure storage of liquids, powders, and specimens while helping maintain product integrity during transport and testing applications.
18-415 continuous thread caps are designed to provide a secure seal for containers with an 18-415 neck finish, including our glass test tubes. These closures are commonly used in laboratory, research, educational, and sample-handling environments where consistent containment is required. Available in multiple materials and liners, 18-415 caps support secure storage of liquids, powders, and specimens while helping maintain product integrity during transport and testing applications.