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GP-278.2 SPARE GLASS PART For Cat. No. 278.1  GP-279.1 LUNG DEMONSTRATION APPARATUS To show how the lungs are emptied and filled with air by the relaxation and contraction of the diaphragm muscle. Two balloons attached to a Y-tube simulate the lungs. The chest cavity is 22.5 x 15cm jar with open top and stout rubber sheet which acts as the diaphragm.  GP-253.1 SPECIFIC GRAVITY BOTTLE NEUTRAL GLASS Spherical pattern, adjusted light blown neutral glass with flat bottom and perforated stopper. Select Item Description Type Capacity .01 25ml .02 50ml  GP-253.3 SPECIFIC GRAVITY BOTTLE BOROSILICATE GLASS Spherical pattern, adjusted light blown neutral glass with flat bottom and perforated stopper. Select Item Description Type Capacity .01 25ml .02 50ml  GP-255.1 HYDROMETER NICHOLSON Of simple density plated, hollow body joints soldered overall size 250 x 35mm height x dia with upper loading pan and lower loaded weighted pan. Page : 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |