I've got some 500mm lengths of 15mm wide borosilicate glass tubing here that I bought to use as a replacement for a volume measurement sight glass on my kettle. If anyone wants one let me know, fiver each.
You can also use one in the middle of a recirculating mash as a view port to see the colour and clarity of the wort as it fits snugly in half inch tubing.
You can also use one in the middle of a recirculating mash as a view port to see the colour and clarity of the wort as it fits snugly in half inch tubing.