Stress crack resistant Superior torque retention Excellent sealing characteristics Manufactured from LDPE. The unique cone design provides a wedge type seal that not only seals across the top but also across the inside diameter.

Resistant to moisture vapor Chemical barrier Autoclavable Caps have excellent properties of resilience. The 14B white rubber lining material consists of homogeneous sulfur cured styrene-butadiene rubber. FDA Status complies with 21CFR 177.26, "Rubber articles intended for repeated use."