Black phenolic screw cap Poly-Seal liner is manufactured from low density polyethylene Unique cone liner design offers superior torque retention and excellent sealing characteristics It is recommended that liner be tested prior to use for leak resistant applications

Black phenolic screw cap 14B Rubber lined caps feature a nontoxic white styrene- butadiene rubber liner ideal for cell culture work GPI thread: 8mm-425 Autoclavable Case of 1000

Aluminum foil-faced pulp board liners Use these caps with organic solvents

These autoclavable caps are designed to ensure the ultimate in product safety. The liners are white styrene-butadiene faced with Teflon.

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."

Black phenolic screw cap Poly-Seal liner is manufactured from low density polyethylene Unique cone liner design offers superior torque retention and excellent sealing characteristics It is recommended that liner be tested prior to use for leak resistant applications

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.