>Thu, 20 Jun 96 Marty Durkin <durkin at stsci_edu> wrote: > ><<[...] Can anyone suggest where this item >can be found or a better alternative to the rubber stopper?>> > ^^^^^^^^^^^^^^^^ > Another alternative is to drill a hole, slightly smaller than the diameter of the hard plastic airline tubing. Push it thru and it will remain tight. > Neil Frank, TAG editor Aquatic Gardeners Association Raleigh, NC USA