HAMAG offer vials screw neck 18mm 20ml clear headspace vial for GC GC/MS instrument with aluminum caps. The spiral headspace series of bottle caps combines innovation with time-saving and convenience. It can avoid excessive evaporation and keep the sample bottle well sealed. The unique screw thread design ensures consistent sealing. The bottle neck is processed accurately and it is easy for mechanical arms to operate. The strict quality ensures size consistence from batch to batch.The professional precision screw thread make septa and vial better sealed, it is simple to operate without using tools. It can be directly screwed down by hand.

Name	18mm 20mlscrew clear headspace vial with aluminum caps
Classification	Laboratory Bottle
Brand Name	HAMAG
Model Number	HM-2075G
Place of Origin	China,Zhejiang
Material	Borosilicate Glass, aluminum, Silicone/PTFE
Color	Clear
Volume	20ml
Closure Size	18 mm
Size	OD22.5*75mm
Cap	opened top/Headspaced cap
Customized support	OEM, ODM, OBM
Sales support	Free sample

- caps septa, different color of caps. optional. - clear or Customized Logo. optional. - Available as closed top screw seals or with centre hole. - Nature PTFE/nature Silicone septa - Made from advanced technology and excellent raw materials. - Could assembled with cap and septa , use them instantly to save your time. - Precise bottle neck size, ensure handle correctly. - Strict quality control to ensure size consistency from batch to batch. - Caps are lined with PTFE/silicone for excellent sealing and chemical resistance. - Caps are manufactured of high quality materials to eliminate sample contamination. - Professional precision screw thread make septa and vial better sealed. Application: food&medicine testing , gasoline&diesel testing, governmental agency, masks testing, headspace experiment Package: 

Package	Dimension	Weight
1pack= 100pcs	10*37*34cm	1.5kgs
1 Carton =6packs=600pcs	38*34*27cm	9kgs