Check the listing for details. Laboratory Lyophilization Flask for the Freeze Dryer. Condition: New. Listed at 86.00 USD. Fit with EYELA LABCONCO VIRTIS Item includes the Glass tube and the Silicon lid and the vessel each PCS Fast-Freeze Flasks attach with adapters to valve ports on Labconco Drying Chambers and Manifolds. They are available in clear or amber-colored glass. A complete Fast-Freeze Flask consists of a rubber top, glass bottom and a supply of filter paper. Tops, bottoms and filter paper are available separately as replacement components. Adapters are available in borosilicate glass or stainless steel. Fast-Freeze Flasks and Adapters are compatible with any brand freeze dryer that has 1/2" or 3/4" diameter valve ports. Glass flasks withstand maximum temperature of 490º C. Flask toppers withstand a maximum temperature of 450º C. Be Made From G3.3 Borosilicate GlassAnnealing Point ------560℃Linear Coefficient of Expansion------ 32×10-7/℃Softening Point------820℃