Made with a ground flat flange having an o-ring groove for positive seal and alignment. Standard o-rings are Teflon, Viton, or E.P.R. Other materials are available upon request. Side neck joints are 180° apart. Thermometer joint 10/30 is 90° from side neck joints. 


Use your imagination and fill your needs! We will build a head for you with any number and variety of joints physically possible. You may choose from standard taper, spherical (ball and socket) or any brand name screw threads (including European).

Reaction Flask Head

Center Neck Joint Size
Side Neck Joint Size
Flask I.D.

    We Accept

    Tel: 225-928-1325


    Mailing address:

    2843 Fellsway Dr,

    Baton Rouge, LA 70814