1000002e Extra Large Empty siphon tube for wheel barometers including glass guide tube and weights, Made from 9mm capillary with 13mm O/D top and lower limb in borosilicate glass, outside measurements across the two limbs at base approx 27mm, 33 1/2" long, kiln annealed for strength. - Price includes delivery to most UK addresses. If any doubt then contact us to confirm suitability. These larger tubes generally were used on 12 inch and larger dialled wheel barometers. If more than one required contact us for discount.
