Restek Datasheets for Laboratory Stoppers

Laboratory stoppers are truncated, cylindrical or conical pieces that are used to plug, close and/or seal labware.
Laboratory Stoppers: Learn more

Product Name Notes
for 2.0 mL, 8 mm Screw-Thread Vials Fit all 2.0 mL, 12 x 32 mm, screw-thread 8 mm/425 vial-based autosamplers. Vaporization is minimized over shorter vials.
for 4.0 mL WISP Crimp-Top Vials
for PerkinElmer GCs Preconditioned and ready to use. Packaged in precleaned glass jars.
for Shell Vials, 1.0 mL, WISP 96 Style, 8 x 40 mm
for Shimadzu GCs Preconditioned and ready to use. Packaged in precleaned glass jars
for Thermo Scientific GCs Usable to 400 °C inlet temperature.* New plasma coating eliminates sticking in the injection port. Precision molding assures consistent, accurate fit. Partial predrilled CenterGuide design. Preconditioned...
5mm hole is compatible with the following systems: Carlo Erba HS500/HS800, CTC 500, Fisons HS500/HS800 and Varian/Chrompack 9020/25. 8mm hole is compatible with the Combi Pal.
Packing: Red PTFE/White Silicone, 0.060″ Type: Screw-Thread Cap size: 10mm/425
Septa
Thermolite® Septa Usable to 340 °C inlet temperature. Precision molding assures consistent, accurate fit. Excellent puncturability. Preconditioned and ready to use. Do not adhere to hot metal surfaces. Packaged...
catalog # color material units 22713 Green Polyethylene 100-pk. 22714 Green Polyethylene 1000-pk. 22715 Grey Chlorobutyl/Siliconi zed 100-pk. 22716 Grey Chlorobutyl/Siliconi zed 1000-pk. 22717 White PTFE/Silicone 100-pk. 22718 White PTFE/Silicone...
catalog # color packing units 21174 Silver PTFE/Natural Rubber 100-pk. 21175 Silver PTFE/Natural Rubber 1000-pk. 24351 Blue PTFE/Red Rubber 100-pk. 24352 Blue PTFE/Red Rubber 1000-pk. 24353 Green PTFE/Red Rubber 100-pk.
catalog # packing units 23090 PTFE/Silicone 100-pk. 23091 PTFE/Silicone 1,000-pk. 23092 PTFE/Silicone for SPME 100-pk. 23093 PTFE/Silicone for SPME 1,000-pk. 23094 PTFE/Red Chlorobutyl 100-pk. 23095 PTFE/Red Chlorobutyl 1,000-pk.
catalog # Product Name modification color material packing units 21745 WISP 48 Caps and Septa Top Hat PTFE/Silicone 100-pk. 21746 WISP 48 Caps and Septa Top Hat PTFE/Silicone 1000-pk. 21743...
Fit all 2.0 mL, 12 x 32 mm, crimp-top vial based autosamplers. Shorter screw cap allows the robotic autosampler to function properly. Wider opening prevents syringe problems. Dimensions are effectively...
Fit all 2.0 mL, 12 x 32 mm, screw-thread 8 mm/425 vial-based autosamplers. Vaporization is minimized over shorter vials.
Snaps on any crimp-style vial. Clear polypropylene cap provides a tighter seal than standard Snap Ring Cap. Good for pressurized injection systems. Save money! Use this snap cap when you...
Usable to 340 °C inlet temperature. Precision molding assures consistent, accurate fit. Excellent puncturability. Preconditioned and ready to use. Do not adhere to hot metal surfaces. Packaged in precleaned glass...
Works on any crimp style vial. Crimps smoothly and easily—no more sharp edges from an aluminum crimp cap. Easily decaps using standard decapping tools. Eliminates inconsistent sealing that results from...