“TB” Dimension: The outside diameter of the barb.  The “TB” ensures retention of the closure on the bottle.

“I” Dimension:  The inner diameter of the bottle neck.  This dimension is critical for the proper interference fit of the plug of the closure to ensure a good seal.

“H” Dimension:  The height of the neck finish.  Measured form the top to the base of the neck

“H1” Dimension:  Measured form the below the barb to the base of the neck.  Important for the proper location of the cap below the barb.

* Please note that the above specifications may vary and are by no means absolute. While every effort has been made to supply the most accurate information Maxistar (Pty) Ltd assumes no liability whatsoever for the accuracy and completeness of information supplied. The final determination of the suitability of information and the manner of use is the sole responsibility of the user. The above specifications relate to necks of bottles produced by Maxistar (Pty) Ltd.  They may be used as a guide only when referring to bottle necks manufactured by converters other than Maxistar (Pty) Ltd, if in doubt consult you packaging supplier.