Ace Glass 6413-07 29/42 Standard Taper Joint Insert for Flat Glass Heads, PTFE

Solid, virgin PTFE, standard taper joint inserts for 6472 series flat glass heads. This low profile insert allows for increased working space above the head. The insert is secured to the head with a reverse threaded locking nut and sealed using a FETFE O-Ring. The top of the insert is formed to allow the use of 7597 joint clips.