LOOKING FOR OLD STYLE PIPET FILLER

[paul gold]

Dear Netters,

Recently I ordered a new red rubber pipet filler.  To my dismay, the
design has been changed so that the spherical knob attached to the "E"
is removed.  It is now much more difficult to eject the final liquid
from the pipet.  I tried looking for the old style pipet filler but they
don't seem to exist.  Does anyone know of a supplier that carries the
old style pipet bulb with the spherical knob?  
Regards.

Paul Gold