15mL HW Pressure Vessel, Cylindrical, #15 Internal Thread, Complete, 25.4mm O.D. x 114mm Length, Bushing Size/15 Retail price on the Chemglass website is $82.90ea Heavy wall pressure vessels have an internal thread for use with PTFE bushings as pressure seals. The unique design allows hand tightening and loosening for easy access into the vessel. O-ring is positioned on the bushing above the thread for improved sealing. Vessels are useful for pressure reactions and applications such as polymerization and analysis of halogens by thermal decomposition in the presence of lime. Supplied complete with vessel, PTFE bushing and Viton o-ring. IMPORTANT NOTICE: ALL CHEMGLASS PRESSURE VESSELS ARE TESTED AT 150 PSI, OR APPROX TWO AND ONE-HALF TIMES THEIR RECOMMENDED WORKING PRESSURE (60PSIG). HOWEVER, CHEMGLASS DOES NOT GUARANTEE THE VESSEL FROM BREAKING UNDER PRESSURE, DUE TO THE NATURE OF MATERIAL AND CONDITIONS BEYOND OUR CONTROL. CHEMGLASS RECOMMENDS THE USE OF SAFETY SHIELDS AND/OR OTHER SAFETY EQUIPMENT.