Stopcock Parts and Components

Cytiva Union Connectors

Cytiva O Rings for EPDM Glass Tubes

Different sized O Rings for EPDM Glass Tubes

DWK Life Sciences DURAN™ Burette Stopcock Key, side entry, drilled and ground, with three part retaining device

For use in burettes.

Cytiva™ Whatman™ Replacement Silicone O-Ring for MD142 Series Pressure Filtration Manifolds

Silicone O-Ring for use with MD142 Series Pressure Filtration Manifolds.

Azlon™ Spare Stopcock for HDPE Aspirator

Replaces leaking or worn out stopcocks. Azlon™ Spare Stopcock for HDPE Aspirators create an excellent seal and are leakproof when installed properly.

Cytiva Whatman™ Replacement Silicone O-Ring for MD050 Series Pressure Filtration Manifolds

Replacement Silicone O-Ring for MD050 Series Pressure Filtration Manifolds.

Cytiva Ethylene Propylene Diene O-ring Set

Cytiva O-ring

Use in aqueous solutions and nearly all organic solvents commonly used in liquid chromatography of macromolecules. Cytiva Life Sciences™ O-rings are made of nitrile rubber.

Cytiva O-ring Inner End Piece for Superloop

DWK Life Sciences Three Part Retaining Device, complete, for stopcock key threaded, SBW -J glass

To secure the tap plug in the ground DURAN™ single way stopcock.

Bel-Art™ SP Scienceware™ Replacement Neoprene O-Ring

Replacement O-Rings for Space Saver Desiccators

DWK Life Sciences O-ring, for stopcock keys with groove

For securing the DURAN™ valve plug with groove in the DURAN™ single way stopcock.

DWK Life Sciences DURAN™ Stopcock Key, hollow, threaded glass handle, ground, with three part retaining device

To be used for higher tightness requirements.

Lenz Laborglasinstrumente™ Spare Chicks

Cytiva Fluor Carbon Rubber O-ring