pyrex stopcock ptfe key 1.5mm

pyrex stopcock ptfe key 1.5mm
 
Self-lubricating stopcocks
 
The combination of highly polished stopcock barrels and self-lubricating PTFE keys avoid the need to grease these stopcocks.
 
Manufactured from borosilicate glass with PTFE keys for highest resistance to chemical attack
Barrels are highly polished and the keys are self lubricating, avoiding the need for stopcock grease
Keys are fully interchangeable and supplied complete with plastic screw thread retaining device
Made to a taper of 1:10 giving a combination of performance and ease of operation