Common use headspace vials with ptfe liner pp cap price transparent volatile organic analysis vials PTFE silicone Vial, 40 ml, 28 OD x 95 mm H, Clear, Borosilicate Glass, 24-414 mm Closure, White Polypropylene Open-top Cap with PTFE-faced Silicone Liner, Unprocessed Level, 44 ml Brim Volume, 0.125″ Unbonded Septum, For Volatile Organic Analysis