"WardsSci000479"

These steel caps fit flint glass, screw cap wide mouth specimen jars. They are finished in black enamel and have a chemically resistant inner liner.

Recommended for Polystyrene Storage Jars.

Pulpvinyl liners resist most chemical reagents. Packages of 12.

Polyvinyl lined for maximum resistance.

Caps with solid PE liners offer good chemical resistance and a low moisture vapor transmission rate and are for great polish remover and higher concentration acids & alkalis