Borosilicate sight glass tubing, cut to length. OD of tubing = 19 mm.

• Only fits 29-1/2” sight glass assemblies
• Please measure the sight glass ports on your tank to make sure we send you the correct size tubing!
• Measure from the TOP of the top tri-clamp ferrule, to the TOP of the bottom tri-clamp ferrule.
• Please do not measure the glass itself.
• This sight glass tubing will ONLY fit 29-1/2” sight glass assemblies, as measured using the method above.